195-524: The American bullfrog ( Lithobates catesbeianus ), often simply known as the bullfrog in Canada and the United States , is a large true frog native to eastern North America . It typically inhabits large permanent water bodies such as swamps , ponds , and lakes . Bullfrogs can also be found in manmade habitats such as pools, koi ponds , canals , ditches and culverts . The bullfrog gets its name from
390-403: A middle power , Canada's strong support for multilateralism and internationalism has been closely related to its foreign relations policies of peacekeeping and aid for developing countries . Canada is part of multiple international organizations and forums . While a variety of theories have been postulated for the etymological origins of Canada , the name is now accepted as coming from
585-467: A parliamentary system within the context of a constitutional monarchy —the monarchy of Canada being the foundation of the executive, legislative , and judicial branches. The reigning monarch is also monarch of 14 other sovereign Commonwealth countries and Canada's 10 provinces . The monarch appoints a representative, the governor general , on the advice of the prime minister , to carry out most of their ceremonial royal duties. The monarchy
780-468: A ballistic lunge (eyes closed as during all leaps) that ends with the mouth opening. At this stage, the fleshy, mucus-coated tongue is extended towards the prey, often engulfing it, while the jaws continue their forward travel to close (bite) just as the tongue is retracted. Large prey that do not fit entirely into the mouth are stuffed in with the hands. In laboratory observations, bullfrogs taking mice usually swam underwater with prey in mouth, apparently with
975-405: A central state apparatus designed to manage state institutions more efficiently. These changes helped Texas universities receive federal research funds. Beginning around the mid-20th century, Texas began to transform from a rural and agricultural state to one urban and industrialized. The state's population grew quickly during this period, with large levels of migration from outside the state. As
1170-752: A chain of events that led to the Mexican–American War in 1846. Following victory by the United States, Texas remained a slave state until the American Civil War , when it declared its secession from the Union in early 1861 before officially joining the Confederate States of America on March 2. After the Civil War and the restoration of its representation in the federal government, Texas entered
1365-665: A consequence of European colonization, the Indigenous population declined by forty to eighty percent. The decline is attributed to several causes, including the transfer of European diseases , to which they had no natural immunity, conflicts over the fur trade, conflicts with the colonial authorities and settlers, and the loss of Indigenous lands to settlers and the subsequent collapse of several nations' self-sufficiency. Although not without conflict, European Canadians ' early interactions with First Nations and Inuit populations were relatively peaceful. First Nations and Métis peoples played
1560-554: A constitutional amending formula and the Canadian Charter of Rights and Freedoms . The Charter guarantees basic rights and freedoms that usually cannot be overridden by any government; a notwithstanding clause allows Parliament and the provincial legislatures to override certain sections of the Charter for a period of five years. Canada's judiciary interprets laws and has the power to strike down acts of Parliament that violate
1755-508: A critical part in the development of European colonies in Canada , particularly for their role in assisting European coureurs des bois and voyageurs in their explorations of the continent during the North American fur trade . These early European interactions with First Nations would change from friendship and peace treaties to the dispossession of Indigenous lands through treaties . From
1950-506: A distinguishing element of Canada's political culture. Peace, order, and good government , alongside an Implied Bill of Rights , are founding principles of Canadian federalism . At the federal level, Canada has been dominated by two relatively centrist parties practising "brokerage politics": the centre-left leaning Liberal Party of Canada and the centre-right leaning Conservative Party of Canada (or its predecessors ). The historically predominant Liberals position themselves at
2145-466: A dominant status. Chorus tenure is restricted due to increased risk of predation, lost foraging opportunities, and higher energy consumption. Calling is postulated to be energetically costly to anurans in general. Energy is also expended through locomotion and aggressive interactions of male bullfrogs within the chorus. To establish social dominance within choruses, bullfrogs demonstrate various forms of aggression, especially through visual displays. Posture
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#17331068286592340-578: A factor in the decline of that vulnerable species . Bullfrogs have been found to feed on the young of several snakes, including the California endemic giant garter snake , a threatened species. In early 2023, the Utah Department of Natural Resources began tweeting tips on how to catch and cook bullfrogs in an effort to encourage residents to help control the growing population by catching the invasive frogs for food. Other countries and regions into which
2535-578: A few days, breaking down temporarily, and then forming again in a new area with a different group of males. Male movement has experimentally been noted to be dynamic. In the Michigan study, the choruses were described as "centers of attraction" in which their larger numbers enhanced the males' overall acoustical displays. This is more attractive to females and also attractive to other sexually active males. Choruses in this study were dynamic, constantly forming and breaking up. New choruses were formed in other areas of
2730-568: A frontier territory. The state became notorious as a haven for people from other parts of the country who wanted to escape debt, war tensions, or other problems. "Gone to Texas" was a common expression for those fleeing the law in other states. Nevertheless, the state also attracted many businessmen and other settlers with more legitimate interests. The cattle industry continued to thrive, though it gradually became less profitable. Cotton and lumber became major industries creating new economic booms in various regions. Railroad networks grew rapidly as did
2925-503: A long period of economic stagnation. Historically, five major industries shaped the Texas economy prior to World War II : cattle, bison, cotton, timber, and oil. Before and after the Civil War, the cattle industry—which Texas came to dominate—was a major economic driver and created the traditional image of the Texas cowboy. In the later 19th century, cotton and lumber grew to be major industries as
3120-466: A major destination for migration during the early 21st century and was named the most popular state to move for three consecutive years. Another study in 2019 determined Texas's growth rate at 1,000 people per day. During the COVID-19 pandemic in Texas , the first confirmed case of the virus in Texas was announced on March 4, 2020. On April 27, 2020, Governor Greg Abbott announced phase one of re-opening
3315-529: A part of the Sun Belt , Texas experienced strong economic growth, particularly during the 1970s and early 1980s. Texas's economy diversified, lessening its reliance on the petroleum industry . By 1990, Hispanics and Latino Americans overtook Blacks to become the largest minority group. Texas has the largest Black population with over 3.9 million. During the late 20th century, the Republican Party replaced
3510-422: A preference for living in shallow water on fine gravel bottoms. American bullfrog tadpoles have also "showed a preference for habitats containing structure." This may reflect a lesser number of predators in these locations. As they grow, they tend to move into deeper water. The tadpoles initially have three pairs of external gills and several rows of labial teeth. They pump water through their gills by movements of
3705-674: A process of increasing autonomy from the United Kingdom. This increased sovereignty was highlighted by the Statute of Westminster, 1931 , and culminating in the Canada Act 1982 , which severed the vestiges of legal dependence on the Parliament of the United Kingdom . Canada is a parliamentary democracy and a constitutional monarchy in the Westminster tradition . The country's head of government
3900-425: A prolonged breeding season, with the males continuously engaging in sexual activity throughout. Males are present at the breeding pond for longer periods than females during the entire season, increasing their chances of multiple matings. The sex ratio is typically skewed toward males. Conversely, females have brief periods of sexual receptivity during the season. In one study, female sexual activity typically lasted for
4095-841: A separate colony in 1769. To avert conflict in Quebec , the British Parliament passed the Quebec Act 1774, expanding Quebec's territory to the Great Lakes and Ohio Valley . More importantly, the Quebec Act afforded Quebec special autonomy and rights of self-administration at a time when the Thirteen Colonies were increasingly agitating against British rule. It re-established the French language, Catholic faith, and French civil law there, staving off
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#17331068286594290-429: A single night and mating did not occur unless the females initiated the physical contact. Males only clasp females after they have indicated their willingness to mate. This finding refutes previous claims that a male frog will clasp any proximate female with no regard to whether the female has consented. Once a male finds a receptive female he will clasp onto her and undergo amplexus—reproductive position—by utilization of
4485-467: A source of food or as biological control agents. In addition to the unintended escape of frogs from breeding establishments or scientific research facilities, captive escapees or released pets are also a possibility. Conservationists are concerned that the bullfrog is relatively immune to the fungal infection chytridiomycosis (also called 'chytrid' fungus) which has been ravaging numerous frog species, and, as it invades new territories, it may assist in
4680-513: A supply state was marginalized in mid-1863 after the Union capture of the Mississippi River . The final battle of the Civil War was fought at Palmito Ranch , near Brownsville, Texas, and saw a Confederate victory. Texas descended into anarchy for two months between the surrender of the Army of Northern Virginia and the assumption of authority by Union General Gordon Granger . Violence marked
4875-431: A temperate climate, with a mild and rainy winter. On the east and west coasts, average high temperatures are generally in the low 20s °C (70s °F), while between the coasts, the average summer high temperature ranges from 25 to 30 °C (77 to 86 °F), with temperatures in some interior locations occasionally exceeding 40 °C (104 °F). Much of Northern Canada is covered by ice and permafrost . The future of
5070-426: A thin, floating sheet which may cover an area of 0.5 to 1.0 m (5.4 to 10.8 sq ft). The embryos develop best at water temperatures between 24 and 30 °C (75 and 86 °F) and hatch in three to five days. If the water temperature rises above 32 °C (90 °F), developmental abnormalities occur, and if it falls below 15 °C (59 °F), normal development ceases. Newly hatched tadpoles show
5265-435: A third of Colorado , and small portions of Kansas , Oklahoma , and Wyoming to the federal government, in return for the assumption of $ 10 million of the old republic's debt. Post-war Texas grew rapidly as migrants poured into the cotton lands of the state. They also brought or purchased enslaved African Americans, whose numbers tripled in the state from 1850 to 1860, from 58,000 to 182,566. Texas re-entered war following
5460-508: Is a key factor in establishing social position and threatening challengers. Territorial males have inflated postures while non-territorial males remain in the water with only their heads showing. For dominant (territorial) males, their elevated posture reveals their yellow-colored throats. When two dominant males encounter each other, they engage in a wrestling bout. The males have their venters clasped, each individual in an erect position rising to well above water level. The New Jersey study noted
5655-548: Is challenging. Disease also tends to be a problem even when great care is taken to provide sanitary conditions. Other challenges to be overcome may be predation, cannibalism , and low water quality. The frogs are large, have powerful leaps, and inevitably escape after which they may wreak havoc among the native frog population. Countries that export bullfrog legs include the Netherlands, Belgium, Mexico, Bangladesh, Japan, China, Taiwan, and Indonesia. Most of these frogs are caught from
5850-554: Is divided into 15 terrestrial and five marine ecozones . These ecozones encompass over 80,000 classified species of Canadian wildlife , with an equal number yet to be formally recognized or discovered. Although Canada has a low percentage of endemic species compared to other countries , due to human activities, invasive species , and environmental issues in the country , there are currently more than 800 species at risk of being lost . About 65 percent of Canada's resident species are considered "Secure". Over half of Canada's landscape
6045-413: Is established through challenges, threats, and other physical displays. Older males tend to acquire more central locations while younger males were restricted to the periphery. Chorus tenure is the number of nights that a male participates in the breeding chorus. One study distinguishes between chorus tenure and dominant tenure. Dominant tenure is more strictly defined as the amount of time a male maintains
American bullfrog - Misplaced Pages Continue
6240-460: Is illegal, and either grasping gigs or hand captures used. The only parts normally eaten are the rear legs, which resemble small chicken drumsticks, have a similar flavor and texture and can be cooked in similar ways. Commercial bullfrog culture in near-natural enclosed ponds has been attempted, but is fraught with difficulties. Although pelleted feed is available, the frogs will not willingly consume artificial diets, and providing sufficient live prey
6435-1019: Is intact and relatively free of human development. The boreal forest of Canada is considered to be the largest intact forest on Earth, with approximately 3,000,000 km (1,200,000 sq mi) undisturbed by roads, cities or industry. Since the end of the last glacial period , Canada has consisted of eight distinct forest regions . Approximately 12.1 percent of the nation's landmass and freshwater are conservation areas , including 11.4 percent designated as protected areas . Approximately 13.8 percent of its territorial waters are conserved, including 8.9 percent designated as protected areas. Canada's first National Park , Banff National Park established in 1885 spans 6,641 square kilometres (2,564 sq mi). Canada's oldest provincial park, Algonquin Provincial Park , established in 1893, covers an area of 7,653.45 square kilometres (2,955.01 sq mi). Lake Superior National Marine Conservation Area
6630-418: Is likely to alert others in the vicinity to danger and they will all retreat into the safety of deeper water. Bullfrogs may be at least partially resistant to the venom of copperhead ( Agkistrodon contortrix ) and cottonmouth ( Agkistrodon piscivorus ) snakes, though these species are known natural predators of bullfrogs as are northern water snakes ( Nerodia sipedon ). Considering the invasive nature of
6825-530: Is nicknamed the Lone Star State for its former status as an independent republic . Spain was the first European country to claim and control Texas. Following a short-lived colony controlled by France, Mexico controlled the land until 1836 when Texas won its independence, becoming the Republic of Texas . In 1845, Texas joined the United States of America as the 28th state. The state's annexation set off
7020-534: Is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration . Canada's long and complex relationship with the United States has had a significant impact on its history , economy , and culture . A developed country , Canada has a high nominal per capita income globally and its advanced economy ranks among the largest in the world by nominal GDP , relying chiefly upon its abundant natural resources and well-developed international trade networks . Recognized as
7215-634: Is solely a federal responsibility and is uniform throughout Canada. Law enforcement, including criminal courts, is officially a provincial responsibility, conducted by provincial and municipal police forces. In most rural and some urban areas, policing responsibilities are contracted to the federal Royal Canadian Mounted Police . Canadian Aboriginal law provides certain constitutionally recognized rights to land and traditional practices for Indigenous groups in Canada. Various treaties and case laws were established to mediate relations between Europeans and many Indigenous peoples. The role of Aboriginal law and
7410-401: Is that it is not dependent on background temperature. A frog with a cold body temperature has muscles that move more slowly, but it can still attack prey with the same speed as if its body was warm. Ballistic tongue projection of the related leopard frog is possible due to the presence of elastic structures that allow storage and subsequent release of elastic recoil energy . This accounts for
7605-533: Is the prime minister , who holds office by virtue of their ability to command the confidence of the elected House of Commons and is appointed by the governor general , representing the monarch of Canada , the ceremonial head of state . The country is a Commonwealth realm and is officially bilingual (English and French) in the federal jurisdiction. It is very highly ranked in international measurements of government transparency, quality of life, economic competitiveness, innovation, education and human rights. It
7800-405: Is the second-largest U.S. state by area, after Alaska , and the largest state within the contiguous United States , at 268,820 square miles (696,200 km ). If it were an independent country, Texas would be the 39th-largest . It ranks 26th worldwide amongst country subdivisions by size . Texas is in the south central part of the United States. The Rio Grande forms a natural border with
7995-564: Is the second-largest country . By land area alone, Canada ranks fourth , due to having the world's largest area of fresh water lakes . Stretching from the Atlantic Ocean in the east, along the Arctic Ocean to the north, and to the Pacific Ocean in the west, the country encompasses 9,984,670 km (3,855,100 sq mi) of territory. Canada also has vast maritime terrain, with
American bullfrog - Misplaced Pages Continue
8190-505: Is the largest species of true frog in North America. xenbase provides limited support (BLAST, JBrowse tracks, genome download) for the bullfrog. The bullfrog is originally native to eastern North America, where it is commonly found in every U.S. state east of the Mississippi River . Its natural range extends from the eastern Canadian Maritime Provinces to as far west as Idaho and Texas , and as far north as Michigan (including
8385-512: Is the source of sovereignty and authority in Canada. However, while the governor general or monarch may exercise their power without ministerial advice in rare crisis situations , the use of the executive powers (or royal prerogative ) is otherwise directed by the Cabinet , a committee of ministers of the Crown responsible to the elected House of Commons and chosen and headed by the prime minister,
8580-545: Is the world's largest freshwater protected area, spanning roughly 10,000 square kilometres (3,900 sq mi). Canada's largest national wildlife region is the Scott Islands Marine National Wildlife Area which spans 11,570.65 square kilometres (4,467.45 sq mi). Canada is described as a " full democracy ", with a tradition of liberalism , and an egalitarian , moderate political ideology. An emphasis on social justice has been
8775-509: Is unetymological, contrary to the historical value of the letter x ( / ʃ / ) in Spanish orthography . Alternative etymologies of the name advanced in the late 19th century connected the name Texas with the Spanish word teja , meaning 'roof tile', the plural tejas being used to designate Indigenous Pueblo settlements. A 1760s map by Jacques-Nicolas Bellin shows a village named Teijas on
8970-644: The Canada Elections Act limits this to four years with a "fixed" election date in October; general elections still must be called by the governor general and can be triggered by either the advice of the prime minister or a lost confidence vote in the House. The 105 members of the Senate, whose seats are apportioned on a regional basis, serve until age 75. Canadian federalism divides government responsibilities between
9165-672: The Dominion Lands Act to regulate settlement and established the North-West Mounted Police to assert authority over the territory. This period of westward expansion and nation building resulted in the displacement of many Indigenous peoples of the Canadian Prairies to " Indian reserves ", clearing the way for ethnic European block settlements . This caused the collapse of the Plains Bison in western Canada and
9360-632: The Aranama , lived in southern Texas. This entire culture group, primarily centered in northeastern Mexico , is now extinct. No culture was dominant across all of present-day Texas, and many peoples inhabited the area. Native American tribes who have lived inside the boundaries of present-day Texas include the Alabama , Apache , Atakapan , Bidai , Caddo , Aranama , Comanche , Choctaw , Coushatta , Hasinai , Jumano , Karankawa , Kickapoo , Kiowa , Tonkawa , and Wichita . Many of these peoples migrated from
9555-407: The Arctic Ocean , making it the world's second-largest country by total area , with the world's longest coastline . Its border with the United States is the world's longest international land border. The country is characterized by a wide range of both meteorologic and geological regions. With a population of just over 41 million people, it has widely varying population densities, with
9750-577: The Battle of Gonzales . This launched the Texas Revolution . Texians elected delegates to the Consultation , which created a provisional government. The provisional government soon collapsed from infighting, and Texas was without clear governance for the first two months of 1836. Mexican President Antonio López de Santa Anna personally led an army to end the revolt. General José de Urrea defeated all
9945-644: The Battle of the Scheldt in 1944. Canada provided asylum for the Dutch monarchy while that country was occupied and is credited by the Netherlands for major contributions to its liberation from Nazi Germany . The Canadian economy boomed during the war as its industries manufactured military materiel for Canada, Britain, China , and the Soviet Union . Despite another Conscription Crisis in Quebec in 1944, Canada finished
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#173310682865910140-552: The COVID-19 pandemic in Canada began on January 27, 2020, with widespread social and economic disruption. In 2021, the possible graves of hundreds of Indigenous people were discovered near the former sites of Canadian Indian residential schools . Administered by various Christian churches and funded by the Canadian government from 1828 to 1997, these boarding schools attempted to assimilate Indigenous children into Euro-Canadian culture . By total area (including its waters), Canada
10335-571: The Canada Act 1982 , the patriation of Canada's constitution from the United Kingdom, concurrent with the creation of the Canadian Charter of Rights and Freedoms . Canada had established complete sovereignty as an independent country under its own monarchy . In 1999, Nunavut became Canada's third territory after a series of negotiations with the federal government. At the same time, Quebec underwent profound social and economic changes through
10530-783: The Canadian Shield , the interior plains , the Great Lakes-St. Lawrence Lowlands , the Appalachian region , the Western Cordillera , Hudson Bay Lowlands , and the Arctic Archipelago . Boreal forests prevail throughout the country, ice is prominent in northern Arctic regions and through the Rocky Mountains , and the relatively flat Canadian Prairies in the southwest facilitate productive agriculture. The Great Lakes feed
10725-554: The Constitution of Canada fully under Canadian control, referred only to Canada . Later that year, the name of the national holiday was changed from Dominion Day to Canada Day . The first inhabitants of North America are generally hypothesized to have migrated from Siberia by way of the Bering land bridge and arrived at least 14,000 years ago. The Paleo-Indian archeological sites at Old Crow Flats and Bluefish Caves are two of
10920-637: The Democratic Party as the dominant party in the state. Beginning in the early 21st century, metropolitan areas including Dallas–Fort Worth and Greater Austin became centers for the Texas Democratic Party in statewide and national elections as liberal policies became more accepted in urban areas. From the mid-2000s to 2019, Texas gained an influx of business relocations and regional headquarters from companies in California . Texas became
11115-499: The First Nations , Inuit , and Métis , the last being of mixed descent who originated in the mid-17th century when First Nations people married European settlers and subsequently developed their own identity. The Indigenous population at the time of the first European settlements is estimated to have been between 200,000 and two million, with a figure of 500,000 accepted by Canada's Royal Commission on Aboriginal Peoples . As
11310-554: The Gulf of Mexico . The resulting " oil boom " transformed Texas. Oil production averaged three million barrels per day at its peak in 1972. In 1901, the Democratic-dominated state legislature passed a bill requiring payment of a poll tax for voting, which effectively disenfranchised most Black and many poor White and Latino people. In addition, the legislature established white primaries , ensuring minorities were excluded from
11505-465: The L. catesbeianus , multiple traits within the species contribute to its competitive ability. The generalist diet of the American bullfrog allows for it to consume food in different environments. When observing the contents of American bullfrog stomachs, it was discovered that adult bullfrogs regularly consume predators of bullfrog young, including dragonfly nymphs, garter snakes, and giant water bugs. Thus,
11700-731: The Meech Lake Accord failed in 1990. This led to the formation of the Bloc Québécois in Quebec and the invigoration of the Reform Party of Canada in the West. A second referendum followed in 1995, in which sovereignty was rejected by a slimmer margin of 50.6 to 49.4 percent. In 1997, the Supreme Court ruled unilateral secession by a province would be unconstitutional, and the Clarity Act
11895-715: The Mississippian culture , also known as Mound Builders , which extended along the Mississippi River Valley east of Texas; and the civilizations of Mesoamerica , which were centered south of Texas. Influence of Teotihuacan in northern Mexico peaked around AD 500 and declined between the 8th and 10th centuries. When Europeans arrived in the Texas region, the language families present in the state were Caddoan, Atakapan , Athabaskan, Coahuiltecan , and Uto-Aztecan, in addition to several language isolates such as Tonkawa . Uto-Aztecan Puebloan and Jumano peoples lived neared
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#173310682865912090-668: The Oka Crisis of 1990, the first of a number of violent confrontations between provincial governments and Indigenous groups. Canada joined the Gulf War in 1990 and was active in several peacekeeping missions in the 1990s, including operations in the Balkans during and after the Yugoslav Wars , and in Somalia , resulting in an incident that has been described as " the darkest era in the history of
12285-611: The Old Three Hundred , made places along the Brazos River in 1822. The population of Texas grew rapidly. In 1825, Texas had about 3,500 people, with most of Mexican descent. By 1834, the population had grown to about 37,800 people, with only 7,800 of Mexican descent. Many immigrants openly flouted Mexican law, especially the prohibition against slavery . Combined with United States' attempts to purchase Texas, Mexican authorities decided in 1830 to prohibit continued immigration from
12480-498: The Pacific Ocean . Their opponents, led by Sam Houston, advocated the annexation of Texas to the United States and peaceful co-existence with Native Americans. The conflict between the factions was typified by an incident known as the Texas Archive War . With wide popular support, Texas first applied for annexation to the United States in 1836, but its status as a slaveholding country caused its admission to be controversial and it
12675-550: The Parliament of Canada and the commissioners represent the King in his federal Council , rather than the monarch directly. The powers flowing from the Constitution Act, 1867 , are divided between the federal government and the provincial governments to exercise exclusively and any changes to that arrangement require a constitutional amendment , while changes to the roles and powers of the territories may be performed unilaterally by
12870-425: The Quiet Revolution of the 1960s, giving birth to a secular nationalist movement. The radical Front de libération du Québec (FLQ) ignited the October Crisis with a series of bombings and kidnappings in 1970, and the sovereigntist Parti Québécois was elected in 1976, organizing an unsuccessful referendum on sovereignty-association in 1980. Attempts to accommodate Quebec nationalism constitutionally through
13065-428: The Saint Lawrence River as Canada . From the 16th to the early 18th century, Canada referred to the part of New France that lay along the Saint Lawrence River. Following the British conquest of New France , this area was known as the British Province of Quebec from 1763 to 1791. In 1791, the area became two British colonies called Upper Canada and Lower Canada . These two colonies were collectively named
13260-429: The Saint Malo settlement assisting Jean Lafitte in the Battle of New Orleans . In 1821, the Mexican War of Independence included the Texas territory, which became part of Mexico. Due to its low population, the territory was assigned to other states and territories of Mexico ; the core territory was part of the state of Coahuila y Tejas , but other parts of today's Texas were part of Tamaulipas , Chihuahua , or
13455-479: The St. Lawrence Iroquoian word kanata , meaning "village" or "settlement". In 1535, Indigenous inhabitants of the present-day Quebec City region used the word to direct French explorer Jacques Cartier to the village of Stadacona . Cartier later used the word Canada to refer not only to that particular village but to the entire area subject to Donnacona (the chief at Stadacona); by 1545, European books and maps had begun referring to this small region along
13650-584: The St. Lawrence River (in the southeast) where the lowlands host much of Canada's economic output. Canada has over 2,000,000 lakes—563 of which are larger than 100 km (39 sq mi)—containing much of the world's fresh water . There are also fresh-water glaciers in the Canadian Rockies , the Coast Mountains , and the Arctic Cordillera . Canada is geologically active , having many earthquakes and potentially active volcanoes . Average winter and summer high temperatures across Canada vary from region to region. Winters can be harsh in many parts of
13845-447: The Trinity River , close to the site of modern Crockett . Texas lies between two major cultural spheres of Pre-Columbian North America : the Southwestern and the Plains areas. Archaeologists have found that three major Indigenous cultures lived in this territory, and reached their developmental peak before the first European contact. These were: the Ancestral Puebloans from the upper Rio Grande region, centered west of Texas;
14040-599: The Upper Peninsula ), Minnesota and Montana ; it is largely absent in North Dakota . The bullfrog has also been introduced onto Nantucket island, as well as portions of the western U.S., including Arizona , Colorado , Hawaii , Idaho , Nevada , New Mexico , Oregon , Utah , Washington and Wyoming . In these states, it is considered to be an invasive species , as concerns exist that it may outcompete or prey upon native species of reptiles and amphibians, disrupting
14235-553: The election of 1860 . During this time, Black people comprised 30 percent of the state's population, and they were overwhelmingly enslaved. When Abraham Lincoln was elected, South Carolina seceded from the Union; five other Deep South states quickly followed. A state convention considering secession opened in Austin on January 28, 1861. On February 1, by a vote of 166–8, the convention adopted an Ordinance of Secession . Texas voters approved this Ordinance on February 23, 1861. Texas joined
14430-672: The federalists against the government and drove all Mexican soldiers out of East Texas. They took advantage of the lack of oversight to agitate for more political freedom. Texians met at the Convention of 1832 to discuss requesting independent statehood, among other issues. The following year, Texians reiterated their demands at the Convention of 1833 . Within Mexico, tensions continued between federalists and centralists. In early 1835, wary Texians formed Committees of Correspondence and Safety. The unrest erupted into armed conflict in late 1835 at
14625-441: The head of government . To ensure the stability of government, the governor general will usually appoint as prime minister the individual who is the current leader of the political party that can obtain the confidence of a majority of members in the House. The Prime Minister's Office (PMO) is one of the most powerful institutions in government, initiating most legislation for parliamentary approval and selecting for appointment by
14820-484: The scientific name , Lithobates catesbeiana , although others prefer Rana catesbeiana . The nuclear genome (~5.8Gbp) of the North American bullfrog ( Rana [Lithobates] catesbeiana ) was published in 2017 and provides a resource for future Ranidae research. The specific name , catesbeiana ( feminine ) or catesbeianus (masculine), is in honor of English naturalist Mark Catesby . The dorsal (upper) surface of
15015-469: The American bullfrog. In areas where the American bullfrog is introduced, the population can be controlled by various means. One project (3n-Bullfrog project) uses sterile triploïd (3n) bullfrogs. In Europe, the American bullfrog is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list). This implies that this species cannot under any circumstances be imported, bred, transported, commercialized, or intentionally released into
15210-568: The Atlantic coast. In general, early settlements during the Age of Discovery appear to have been short-lived due to a combination of the harsh climate, problems with navigating trade routes and competing outputs in Scandinavia. In 1583, Sir Humphrey Gilbert , by the royal prerogative of Queen Elizabeth I , founded St John's, Newfoundland , as the first North American English seasonal camp . In 1600,
15405-409: The Atlantic coast. As a consequence of various armed conflicts , France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation , Canada was formed as a federal dominion of four provinces. This began an accretion of provinces and territories resulting in the displacement of Indigenous populations , and
15600-622: The Caddo meant that few were converted. Positioned between French Louisiana and Spanish Texas, the Caddo maintained relations with both, but were closer with the French. After Spain took control of Louisiana, most of the missions in eastern Texas were closed and abandoned. The United States obtained Louisiana following the 1803 Louisiana Purchase and began convincing tribes to self-segregate from whites by moving west; facing an overflow of native peoples in Missouri and Arkansas, they were able to negotiate with
15795-511: The Caddo of Louisiana and Arkansas. Following the Texas Revolution, the Texans chose to make peace with the Indigenous people, but did not honor former land claims or agreements. The first president of Texas, Sam Houston , aimed to cooperate and make peace with Native tribes, but his successor, Mirabeau B. Lamar , took a much more hostile stance. Hostility towards Natives by white Texans prompted
15990-558: The Caddo to allow several displaced peoples to settle on unused lands in eastern Texas. These included the Muscogee , Houma Choctaw , Lenape and Mingo Seneca , among others, who came to view the Caddoans as saviors. The temperament of Native American tribes affected the fates of European explorers and settlers in that land. Friendly tribes taught newcomers how to grow local crops, prepare foods, and hunt wild game . Warlike tribes resisted
16185-520: The Caddo, with the U.S. government trying to keep them in check. The Caddo never turned to violence because of the situation, except in cases of self-defense. By the 1830s, the U.S. had drafted the Indian Removal Act, which was used to facilitate the Trail of Tears. Fearing retribution, Indian Agents all over the eastern U.S. tried to convince all Indigenous peoples to uproot and move west. This included
16380-466: The Caddo. After Caddo resistance, the Spanish missionaries returned to Mexico. When France began settling Louisiana , in 1716 Spanish authorities responded by founding a new series of missions in East Texas. Two years later, they created San Antonio as the first Spanish civilian settlement in the area. Hostile native tribes and distance from nearby Spanish colonies discouraged settlers from moving to
16575-665: The Canadas until their union as the British Province of Canada in 1841. Upon Confederation in 1867 , Canada was adopted as the legal name for the new country at the London Conference and the word dominion was conferred as the country's title. By the 1950s, the term Dominion of Canada was no longer used by the United Kingdom, which considered Canada a "realm of the Commonwealth". The Canada Act 1982 , which brought
16770-729: The Canadian military ". Canada sent troops to Afghanistan in 2001 , resulting in the largest amount of Canadian deaths for any single military mission since the Korean War in the early 1950s. In 2011, Canadian forces participated in the NATO-led intervention into the Libyan Civil War and also became involved in battling the Islamic State insurgency in Iraq in the mid-2010s. The country celebrated its sesquicentennial in 2017, three years before
16965-525: The Confederacy, Houston was deposed. While far from the major battlefields of the American Civil War , Texas contributed large numbers of soldiers and equipment. Union troops briefly occupied the state's primary port, Galveston. Texas's border with Mexico was known as the "backdoor of the Confederacy" because trade occurred at the border, bypassing the Union blockade. The Confederacy repulsed all Union attempts to shut down this route, but Texas's role as
17160-641: The Convention disbanded. The new government joined the other settlers in Texas in the Runaway Scrape , fleeing from the approaching Mexican army. After several weeks of retreat, the Texian Army commanded by Sam Houston attacked and defeated López de Santa Anna's forces at the Battle of San Jacinto . López de Santa Anna was captured and forced to sign the Treaties of Velasco , ending the war. The Constitution of
17355-485: The Crown the governor general, lieutenant governors , senators, federal court judges, and heads of Crown corporations and government agencies. The leader of the party with the second-most seats usually becomes the leader of the Official Opposition and is part of an adversarial parliamentary system intended to keep the government in check. The Parliament of Canada passes all federal statute laws. It comprises
17550-732: The First Nations to education, government and legal rights. Because Britain still maintained control of Canada's foreign affairs under the British North America Act, 1867, its declaration of war in 1914 automatically brought Canada into the First World War . Volunteers sent to the Western Front later became part of the Canadian Corps , which played a substantial role in the Battle of Vimy Ridge and other major engagements of
17745-520: The French established their first seasonal trading post at Tadoussac along the Saint Lawrence. French explorer Samuel de Champlain arrived in 1603 and established the first permanent year-round European settlements at Port Royal (in 1605) and Quebec City (in 1608). Among the colonists of New France, Canadiens extensively settled the Saint Lawrence River valley and Acadians settled
17940-514: The Mexican Territory of Santa Fe de Nuevo México . Hoping more settlers would reduce the near-constant Comanche raids, Mexican Texas liberalized its immigration policies to permit immigrants from outside Mexico and Spain. Large swathes of land were allotted to empresarios , who recruited settlers from the United States, Europe, and the Mexican interior, primarily the U.S. Austin's settlers,
18135-426: The Mexican states of Chihuahua , Coahuila , Nuevo León , and Tamaulipas to the south. The Red River forms a natural border with Oklahoma and Arkansas to the north. The Sabine River forms a natural border with Louisiana to the east. The Texas Panhandle has an eastern border with Oklahoma at 100° W , a northern border with Oklahoma at 36°30' N and a western border with New Mexico at 103° W . El Paso lies on
18330-627: The Métis' grievances ignited the Red River Rebellion and the creation of the province of Manitoba in July 1870. British Columbia and Vancouver Island (which had been united in 1866) joined the confederation in 1871 on the promise of a transcontinental railway extending to Victoria in the province within 10 years, while Prince Edward Island joined in 1873. In 1898, during the Klondike Gold Rush in
18525-476: The Northern United States or California and to escape segregation. In 1940, Texas was 74% White , 14.4% Black, and 11.5% Hispanic. World War II had a dramatic impact on Texas, as federal money poured in to build military bases, munitions factories, detention camps and Army hospitals; 750,000 Texans left for service; the cities exploded with new industry; and hundreds of thousands of poor farmers left
18720-700: The Northwest Territories, Parliament created the Yukon Territory. Alberta and Saskatchewan became provinces in 1905. Between 1871 and 1896, almost one quarter of the Canadian population emigrated south to the US. To open the West and encourage European immigration, the Government of Canada sponsored the construction of three transcontinental railways (including the Canadian Pacific Railway ), passed
18915-518: The Parliament of Canada. Texas Texas ( / ˈ t ɛ k s ə s / TEK -səss , locally also / ˈ t ɛ k s ɪ z / TEK -siz ; Spanish : Texas or Tejas , pronounced [ˈtexas] ) is the most populous state in the South Central region of the United States . It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to
19110-601: The Philippines'), or as provincia de los Tejas ('province of the Tejas '), later also provincia de Texas (or de Tejas ), ('province of Texas'). It was incorporated as provincia de Texas into the Mexican Empire in 1821, and declared a republic in 1836. The Royal Spanish Academy recognizes both spellings, Tejas and Texas , as Spanish-language forms of the name. The English pronunciation with /ks/
19305-514: The Republic of Texas prohibited the government from restricting slavery or freeing slaves, and required free people of African descent to leave the country. Political battles raged between two factions of the new Republic. The nationalist faction, led by Mirabeau B. Lamar , advocated the continued independence of Texas, the expulsion of the Native Americans , and the expansion of the Republic to
19500-719: The Rio Grande in the western portion of the state and the Athabaskan-speaking Apache tribes lived throughout the interior. The agricultural, mound-building Caddo controlled much of the northeastern part of the state, along the Red , Sabine , and Neches River basins. Atakapan peoples such as the Akokisa and Bidai lived along the northeastern Gulf Coast; the Karankawa lived along the central coast. At least one tribe of Coahuiltecans ,
19695-558: The Rio Grande on January 13, 1846. A few months later Mexican troops routed an American cavalry patrol in the disputed area in the Thornton Affair starting the Mexican–American War . The first battles of the war were fought in Texas: the Siege of Fort Texas , Battle of Palo Alto and Battle of Resaca de la Palma . After these decisive victories, the United States invaded Mexican territory, ending
19890-587: The Texian resistance along the coast culminating in the Goliad massacre . López de Santa Anna's forces, after a thirteen-day siege , overwhelmed Texian defenders at the Battle of the Alamo . News of the defeats sparked panic among Texas settlers. The newly elected Texian delegates to the Convention of 1836 quickly signed a declaration of independence on March 2, forming the Republic of Texas . After electing interim officers,
20085-597: The U.S. After Texas's annexation, Mexico broke diplomatic relations with the United States. While the United States claimed Texas's border stretched to the Rio Grande, Mexico claimed it was the Nueces River leaving the Rio Grande Valley under contested Texan sovereignty. While the former Republic of Texas could not enforce its border claims, the United States had the military strength and the political will to do so. President Polk ordered General Zachary Taylor south to
20280-682: The United Kingdom. The delay underscored Canada's independence. The first Canadian Army units arrived in Britain in December 1939. In all, over a million Canadians served in the armed forces during the Second World War . Canadian troops played important roles in many key battles of the war, including the failed 1942 Dieppe Raid , the Allied invasion of Italy , the Normandy landings , the Battle of Normandy , and
20475-617: The United States in 1846 ended the Oregon boundary dispute , extending the border westward along the 49th parallel . This paved the way for British colonies on Vancouver Island (1849) and in British Columbia (1858) . The Anglo-Russian Treaty of Saint Petersburg (1825) established the border along the Pacific coast, but, even after the US Alaska Purchase of 1867, disputes continued about
20670-404: The United States. With a growing base of industry, the state leads in many industries, including tourism , agriculture , petrochemicals , energy , computers and electronics , aerospace , and biomedical sciences . Texas has led the U.S. in state export revenue since 2002 and has the second-highest gross state product . The Dallas–Fort Worth metroplex and Greater Houston areas are
20865-444: The United States. However, illegal immigration from the United States into Mexico continued to increase the population of Texas. New laws also called for the enforcement of customs duties angering native Mexican citizens ( Tejanos ) and recent immigrants alike. The Anahuac Disturbances in 1832 were the first open revolt against Mexican rule, coinciding with a revolt in Mexico against the nation's president. Texians sided with
21060-466: The ability to withstand the discomforting spines of the stickleback fish. Reports of American bullfrogs eating scorpions and rattlesnakes also exist. Analysis of the American bullfrog's realized niche at various sites in Mexico, and comparisons with the niches of endemic frogs show that it is possible that the American bullfrog capable of niche shift, and pose a threat to many endemic Mexican frog species, even those that are not currently in competition with
21255-466: The abortive Rebellions of 1837 . The Durham Report subsequently recommended responsible government and the assimilation of French Canadians into English culture. The Act of Union 1840 merged the Canadas into a united Province of Canada and responsible government was established for all provinces of British North America east of Lake Superior by 1855. The signing of the Oregon Treaty by Britain and
21450-404: The advantageous result of altering the mouse's defense from counter-attack to struggling for air. Asphyxiation is the most likely cause of death of warm-blooded prey. The speed of a bullfrog's tongue strike is much faster than it should be if muscles were the only force behind it. Similar to the tension on a slingshot pulled all the way back, when the frog's mouth is closed, tension is put into
21645-514: The agreement. Several filibusters raised armies to invade the area west of the Sabine River. Marked by the War of 1812 , some men who had escaped from the Spanish, held (Old) Philippines had immigrated to and also passed through Texas (New Philippines) and reached Louisiana where Philippine exiles aided the United States in the defense of New Orleans against a British invasion, with Filipinos in
21840-561: The area. It was one of New Spain's least populated provinces. In 1749, the Spanish peace treaty with the Lipan Apache angered many tribes, including the Comanche, Tonkawa, and Hasinai. The Comanche signed a treaty with Spain in 1785 and later helped to defeat the Lipan Apache and Karankawa tribes. With numerous missions being established, priests led a peaceful conversion of most tribes. By
22035-459: The bullfrog has an olive-green basal color, either plain or with mottling and banding of grayish brown. The ventral (under) surface is off-white blotched with yellow or gray. Often, a marked contrast in color is seen between the green upper lip and the pale lower lip. The teeth are tiny and are useful only in grasping. The eyes are prominent with brown irises and horizontal, almond-shaped pupils . The tympana (eardrums) are easily seen just behind
22230-690: The bullfrog has been introduced include the extreme south of British Columbia , Canada , nearly every state in Mexico , as well as Belgium , Cuba , the Dominican Republic , Haiti , Italy , Jamaica , the Netherlands , and Puerto Rico . It is also found in Argentina , Brazil , China , Colombia , Japan , South Korea , Uruguay and Venezuela . The reasons for introducing the bullfrog to these areas have largely been intentional, either to provide humans with
22425-401: The cattle industry became less lucrative. Ultimately, the discovery of major petroleum deposits ( Spindletop in particular) initiated an economic boom that became the driving force behind the economy for much of the 20th century. Texas developed a diversified economy and high tech industry during the mid-20th century. As of 2022 , it has the most Fortune 500 company headquarters (53) in
22620-707: The centre of the political scale. Five parties had representatives elected to the Parliament in the 2021 election —the Liberals, who formed a minority government; the Conservatives, who became the Official Opposition ; the New Democratic Party (occupying the left ); the Bloc Québécois ; and the Green Party . Far-right and far-left politics have never been a prominent force in Canadian society. Canada has
22815-508: The colony of Fort Saint Louis at Matagorda Bay rather than along the Mississippi River . The colony lasted only four years before succumbing to harsh conditions and hostile natives. A small band of survivors traveled eastward into the lands of the Caddo, but La Salle was killed by disgruntled expedition members. In 1690 Spanish authorities, concerned that France posed a competitive threat, constructed several missions in East Texas among
23010-548: The constitution. The Supreme Court of Canada is the highest court, final arbiter, and has been led since 2017 by Richard Wagner , the Chief Justice of Canada . The governor general appoints the court's nine members on the advice of the prime minister and minister of justice . The federal Cabinet also appoints justices to superior courts in the provincial and territorial jurisdictions. Common law prevails everywhere except Quebec, where civil law predominates. Criminal law
23205-499: The country and consists of written text and unwritten conventions. The Constitution Act, 1867 (known as the British North America Act, 1867 prior to 1982), affirmed governance based on parliamentary precedent and divided powers between the federal and provincial governments. The Statute of Westminster, 1931 , granted full autonomy, and the Constitution Act, 1982 , ended all legislative ties to Britain, as well as adding
23400-421: The country, particularly in the interior and Prairie provinces, which experience a continental climate , where daily average temperatures are near −15 °C (5 °F ), but can drop below −40 °C (−40 °F) with severe wind chills . In non-coastal regions, snow can cover the ground for almost six months of the year, while in parts of the north snow can persist year-round. Coastal British Columbia has
23595-556: The delicate ecological balance of certain areas. The bullfrog has been introduced in Hawaii , South America , Asia , the Caribbean , and Europe for various purposes including frog farming and population control of other species. It is very common on the West Coast , especially in California , where it is believed to pose a threat to the California red-legged frog , and is considered to be
23790-442: The desert and mountains of the Big Bend . The name Texas , based on the Caddo word táy:shaʼ ( /tə́jːʃaʔ/ ) 'friend', was applied, in the spelling Tejas or Texas , by the Spanish to the Caddo themselves, specifically the Hasinai Confederacy. During Spanish colonial rule , in the 18th century, the area was known as Nuevas Filipinas (' New Philippines ') and Nuevo Reino de Filipinas ('New Kingdom of
23985-486: The dynamically changing choruses are all common ways for males to maintain dominant, or territorial, status within the chorus. Older males have greater success in all of these areas than younger males. Some of the males display a more inferior role, termed by many researchers as the silent male status. These silent males adopt a submissive posture, sit near resident males and make no attempt to displace them. The silent males do not attempt to intercept females but are waiting for
24180-444: The early 1930s saw an economic downturn, leading to hardship across the country. In response to the downturn, the Co-operative Commonwealth Federation (CCF) in Saskatchewan introduced many elements of a welfare state (as pioneered by Tommy Douglas ) in the 1940s and 1950s. On the advice of Prime Minister William Lyon Mackenzie King , war with Germany was declared effective September 10, 1939, by King George VI , seven days after
24375-410: The early months of Reconstruction . Juneteenth commemorates the announcement of the Emancipation Proclamation in Galveston by General Gordon Granger, almost two and a half years after the original announcement. President Johnson, in 1866, declared the civilian government restored in Texas. Despite not meeting Reconstruction requirements, Congress resumed allowing elected Texas representatives into
24570-437: The east, seeking a route to Mexico. They passed through the Caddo lands but turned back after reaching the River of Daycao (possibly the Brazos or Colorado), beyond which point the Native peoples were nomadic and did not have the agricultural stores to feed the expedition. European powers ignored the area until accidentally settling there in 1685. Miscalculations by René-Robert Cavelier de La Salle resulted in his establishing
24765-449: The ecological check on American bullfrog juveniles in invaded areas become less effective. L. catesbeianus seems to exhibit traits of immunity or resistance against the antipredator defenses of other organisms. Analysis of stomach contents from bullfrog populations in New Mexico show the regular consumption of wasps, with no conditioned avoidance due to the wasps' stingers. Along the Colorado river, L. catesbeianus stomach contents indicate
24960-423: The economy. Amid a rise in COVID-19 cases in autumn 2020, Abbott refused to enact further lockdowns. In November 2020, Texas was selected as one of four states to test Pfizer's COVID-19 vaccine distribution. As of February 2, 2021, there had been over 2.4 million confirmed cases in Texas, with at least 37,417 deaths. During February 13–17, 2021, the state faced a major weather emergency as Winter Storm Uri hit
25155-645: The elastic structures differ from those developed by muscular projection, accounting for the difference in velocity, power output, and thermal dependence. Bullfrogs are an important item of prey to many birds (especially large herons ), North American river otters ( Lontra canadensis ), predatory fish, and occasionally other amphibians. Predators of American bullfrogs once in their adult stages can range from 150 g (5.3 oz) belted kingfishers ( Megaceryle alcyon ) to 1,100 lb (500 kg) American alligators ( Alligator mississippiensis ). The eggs and larvae are unpalatable to many salamanders and fish , but
25350-479: The elastic tissues of the tongue, and also into the elastic tendons of the lower jaw. When the frog attacks prey, opening its mouth is like letting go of the slingshot; the elastic force stored up in both the tongue and the jaw are combined to shoot the tip of the tongue toward the prey much faster than the prey's ability to see the strike and evade capture, completing the strike and retrieval in approximately 0.07 seconds. Another benefit of this elastic-force based attack
25545-563: The emergence of a new Canadian identity , marked by the adoption of the maple leaf flag in 1965, the implementation of official bilingualism (English and French) in 1969, and the institution of official multiculturalism in 1971. Socially democratic programs were also instituted, such as Medicare , the Canada Pension Plan , and Canada Student Loans ; though, provincial governments, particularly Quebec and Alberta, opposed many of these as incursions into their jurisdictions. Finally, another series of constitutional conferences resulted in
25740-416: The end of the 18th century only a few nomadic tribes had not converted. When the United States purchased Louisiana from France in 1803, American authorities insisted the agreement also included Texas. The boundary between New Spain and the United States was finally set in 1819 at the Sabine River , the modern border between Texas and Louisiana. Eager for new land, many U.S. settlers refused to recognize
25935-452: The environment in the whole of the European Union. The American bullfrog has been known to spread the amphibian pathogen Batrachochytrium dendrobatidis among populations that it has been introduced to. The American bullfrog provides a food source, especially in the Southern and some areas of the Midwestern United States . The traditional way of hunting them is to paddle or pole silently by canoe or flatboat in ponds or swamps at night; when
26130-414: The exact demarcation of the Alaska–Yukon and Alaska–BC border. Following three constitutional conferences, the British North America Act, 1867 officially proclaimed Canadian Confederation on July 1, 1867, initially with four provinces: Ontario , Quebec, Nova Scotia, and New Brunswick. Canada assumed control of Rupert's Land and the North-Western Territory to form the Northwest Territories , where
26325-458: The eyes and the dorsolateral folds of skin enclose them. The limbs are blotched or banded with gray. The fore legs are short and sturdy and the hind legs are long. The front toes are not webbed, but the back toes have webbing between the digits with the exception of the fourth toe, which is unwebbed. Bullfrogs are sexually dimorphic , with males being smaller than females and having yellow throats. Males have tympana larger than their eyes, whereas
26520-416: The federal government and the 10 provinces. Provincial legislatures are unicameral and operate in parliamentary fashion similar to the House of Commons. Canada's three territories also have legislatures, but these are not sovereign, have fewer constitutional responsibilities than the provinces, and differ structurally from their provincial counterparts. The Constitution of Canada is the supreme law of
26715-401: The federal government for their opposition to U.S. involvement in World War I . The Great Depression and the Dust Bowl dealt a double blow to the state's economy, which had significantly improved since the Civil War. Migrants abandoned the worst-hit sections of Texas during the Dust Bowl years. Especially from this period on, Black people left Texas in the Great Migration to get work in
26910-404: The federal government in 1870. Social volatility continued as the state struggled with agricultural depression and labor issues. Like most of the South, the Texas economy was devastated by the War. However, since the state had not been as dependent on slaves as other parts of the South, it was able to recover more quickly. The culture in Texas during the later 19th century exhibited many facets of
27105-486: The females arrive to the site for the purpose of copulation. In a 1980 study on bullfrogs in New Jersey, the mating system was classified as resource-defense polygyny. The males defended territories within the group and demonstrated typical physical forms of defense. Male bullfrogs aggregate into groups called choruses. The male chorus behavior is analogous to the lek formation of birds, mammals, and other vertebrates. Choruses are dynamic, forming and remaining associated for
27300-406: The fields for much better-paying war jobs, never to return to agriculture. Texas manufactured 3.1 percent of total United States military armaments produced during World War II, ranking eleventh among the 48 states. Texas modernized and expanded its system of higher education through the 1960s. The state created a comprehensive plan for higher education, funded in large part by oil revenues, and
27495-471: The fighting in Texas. The Treaty of Guadalupe Hidalgo ended the two-year war. In return for US$ 18,250,000, Mexico gave the U.S. undisputed control of Texas, ceded the Mexican Cession in 1848, most of which today is called the American Southwest, and Texas's borders were established at the Rio Grande. The Compromise of 1850 set Texas's boundaries at their present position: Texas ceded its claims to land which later became half of present-day New Mexico ,
27690-435: The first Europeans in what is now Texas. Cabeza de Vaca reported that in 1528, when the Spanish landed in the area, "half the natives died from a disease of the bowels and blamed us." Cabeza de Vaca also made observations about the way of life of the Ignaces Natives of Texas. Francisco Vázquez de Coronado described another encounter with native people in 1541. The expedition of Hernando de Soto entered into Texas from
27885-408: The floor of their mouths, trapping bacteria, single-celled algae , protozoans , pollen grains, and other small particles on mucus in a filtration organ in their pharynges . As they grow, they begin to ingest larger particles and use their teeth for rasping. They have downward-facing mouths, deep bodies, and tails with broad dorsal and ventral fins. Time to metamorphosis ranges from a few months in
28080-464: The formal political process. The number of voters dropped dramatically, and the Democrats crushed competition from the Republican and Populist parties. The Socialist Party became the second-largest party in Texas after 1912, coinciding with a large socialist upsurge in the United States during fierce battles in the labor movement and the popularity of national heroes like Eugene V. Debs . The socialists' popularity soon waned after their vilification by
28275-421: The frog's call is heard, a light is shone at the frog which temporarily inhibits its movement. The frog will not jump into deeper water as long as it is approached slowly and steadily. When close enough, the frog is gigged with a multiple-tined spear and brought into the boat. Bullfrogs can also be stalked on land, by again taking great care not to startle them. In some states, breaking the skin while catching them
28470-456: The green frog, leopard frog, and wood frog ( L. clamitans , L. pipiens , and L. sylvaticus , respectively) was also demonstrated in laboratory experiments. Prey motion elicits feeding behavior. First, if necessary, the frog performs a single, orienting bodily rotation ending with the frog aimed towards the prey, followed by approaching leaps, if necessary. Once within striking distance, the bullfrog begins its feeding strike, which consists of
28665-412: The growth of an independence movement in contrast to the Thirteen Colonies. The Proclamation and the Quebec Act in turn angered many residents of the Thirteen Colonies, further fuelling anti-British sentiment in the years prior to the American Revolution . After the successful American War of Independence, the 1783 Treaty of Paris recognized the independence of the newly formed United States and set
28860-405: The high levels of activity of the tadpoles may make them more noticeable to a predator not deterred by their unpleasant taste. Humans hunt bullfrogs as game and consume their legs. Adult frogs try to escape by splashing and leaping into deep water. A trapped individual may squawk or emit a piercing scream, which may surprise the attacker sufficiently for the frog to escape. An attack on one bullfrog
29055-436: The highly competitive mating environment. These male and female behaviors cause male-to-male competition to be high within the bullfrog population and sexual selection for the females to be an intense process. Kentwood Wells postulated leks , territorial polygyny , and harems are the most likely classifications for the bullfrog mating system. Leks would be a valid description because males congregate to attract females, and
29250-405: The introduction of European cattle farms and wheat fields dominating the land. The Indigenous peoples saw widespread famine and disease due to the loss of the bison and their traditional hunting lands. The federal government did provide emergency relief, on condition of the Indigenous peoples moving to the reserves. During this time, Canada introduced the Indian Act extending its control over
29445-418: The large number of eggs they produce, which has a negative effect on native amphibians and other fauna. Bullfrogs are very skittish which makes capture difficult and so they often become established. Other than for food, bullfrogs are also used for dissection in science classes. Albino bullfrogs are sometimes kept as pets, and bullfrog tadpoles are often sold at ponds or fish stores. Some authorities use
29640-463: The late 18th century, European Canadians forced Indigenous peoples to assimilate into a western Canadian society. Settler colonialism reached a climax in the late 19th and early 20th centuries. A period of redress began with the formation of a reconciliation commission by the Government of Canada in 2008. This included acknowledgment of cultural genocide , settlement agreements , and betterment of racial discrimination issues, such as addressing
29835-501: The later wars of the period constituted the North American theatre of the Seven Years' War . Mainland Nova Scotia came under British rule with the 1713 Treaty of Utrecht and Canada and most of New France came under British rule in 1763 after the Seven Years' War. The Royal Proclamation of 1763 established First Nation treaty rights, created the Province of Quebec out of New France, and annexed Cape Breton Island to Nova Scotia. St John's Island (now Prince Edward Island ) became
30030-539: The main front in the War of 1812 between the United States and the United Kingdom . Peace came in 1815; no boundaries were changed. Immigration resumed at a higher level, with over 960,000 arrivals from Britain between 1815 and 1850. New arrivals included refugees escaping the Great Irish Famine as well as Gaelic -speaking Scots displaced by the Highland Clearances . Infectious diseases killed between 25 and 33 percent of Europeans who immigrated to Canada before 1891. The desire for responsible government resulted in
30225-404: The majority residing in urban areas and large areas of the country being sparsely populated. Canada's capital is Ottawa and its three largest metropolitan areas are Toronto , Montreal , and Vancouver . Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along
30420-403: The male population density is low and males maintain clearer, more distinct territories, female choice is mostly determined by territory quality. When male population density is higher, females depend on other cues to select their mates. These cues include the males' positions within the chorus and differences in male display behaviors among other determinants. Social dominance within the choruses
30615-420: The males would approach each other to within a few centimeters and then tilt back their heads, displaying their brilliantly colored gular sacs. The gular is dichromatic in bullfrogs, with dominant and fitter males displaying yellow gulars. The New Jersey study also reported low posture with only the head exposed above the water surface was typical of subordinate, or non-territorial males, and females. High posture
30810-474: The males' forelimbs. The enlargement of forelimb muscles is a sexually dimorphic trait seen in the male bullfrog. One study investigating male and female bullfrog forelimbs muscles found males had significantly stronger muscles that could undergo longer durations of activity before the onset of fatigue. The significance of forelimb sexual dimorphism allow males to remain in amplexus with the female for longer durations increasing their chance at reproductive success in
31005-549: The many types of invertebrates , such as snails , worms and insects , which are the usual food of ranid frogs. These studies revealed the bullfrog's diet to be unique among North American ranids in the inclusion of a large percentage of aquatic animals, such as fish, tadpoles, ram's horn snails , and dytiscid beetles , as well as the aquatic eggs of fish, frogs, insects, or salamanders . Cannibalism has been observed in bullfrog populations in resource-limited environments. Bullfrogs are able to capture large, strong prey because of
31200-514: The monarch, the House of Commons, and the Senate . While Canada inherited the British concept of parliamentary supremacy , this was later, with the enactment of the Constitution Act, 1982, all but completely superseded by the American notion of the supremacy of the law . Each of the 338 members of Parliament in the House of Commons is elected by simple plurality in an electoral district or riding. The Constitution Act, 1982 , requires that no more than five years pass between elections, although
31395-572: The movement of most Native populations north into what would become Indian Territory (modern Oklahoma). Only the Alabama-Coushatta would remain in the parts of Texas subject to white settlement, though the Comanche would continue to control most of the western half of the state until their defeat in the 1870s and 1880s. The first historical document related to Texas was a map of the Gulf Coast , created in 1519 by Spanish explorer Alonso Álvarez de Pineda . Nine years later, shipwrecked Spanish explorer Álvar Núñez Cabeza de Vaca and his cohort became
31590-479: The name of Henry VII of England . In 1534, French explorer Jacques Cartier explored the Gulf of Saint Lawrence where, on July 24, he planted a 10-metre (33 ft) cross bearing the words, "long live the King of France", and took possession of the territory New France in the name of King Francis I . The early 16th century saw European mariners with navigational techniques pioneered by the Basque and Portuguese establish seasonal whaling and fishing outposts along
31785-502: The nation's fourth and fifth-most populous urban regions respectively. Its capital city is Austin . Due to its size and geologic features such as the Balcones Fault , Texas contains diverse landscapes common to both the U.S. Southern and the Southwestern regions . Most population centers are in areas of former prairies , grasslands , forests, and the coastline . Traveling from east to west, terrain ranges from coastal swamps and piney woods , to rolling plains and rugged hills, to
31980-486: The newly created Confederate States of America on March 4, 1861, ratifying the permanent C.S. Constitution on March 23. Not all Texans favored secession initially, although many of the same would later support the Southern cause. Texas's most notable Unionist was the state governor, Sam Houston . Not wanting to aggravate the situation, Houston refused two offers from President Lincoln for Union troops to keep him in office. After refusing to swear an oath of allegiance to
32175-406: The north or east during the colonial period, such as the Choctaw , Alabama-Coushatta, and Delaware . The region was primarily controlled by the Spanish until the Texas Revolution . They were most interested in relationships with the Caddo, who were—like the Spanish—a settled, agricultural people. Several Spanish missions were opened in Caddo territory, but a lack of interest in Christianity among
32370-413: The north, New Mexico to the west, and an international border with the Mexican states of Chihuahua , Coahuila , Nuevo León , and Tamaulipas to the south and southwest. Texas has a coastline on the Gulf of Mexico to the southeast. Covering 268,596 square miles (695,660 km ), and with over 30 million residents as of 2023, it is the second-largest state by both area and population . Texas
32565-430: The oldest sites of human habitation in Canada. The characteristics of Indigenous societies included permanent settlements, agriculture, complex societal hierarchies, and trading networks. Some of these cultures had collapsed by the time European explorers arrived in the late 15th and early 16th centuries and have only been discovered through archeological investigations. Indigenous peoples in present-day Canada include
32760-404: The permafrost is uncertain because the Arctic has been warming at three times the global average as a result of climate change in Canada . Canada's annual average temperature over land has risen by 1.7 °C (3.1 °F), with changes ranging from 1.1 to 2.3 °C (2.0 to 4.1 °F) in various regions, since 1948. The rate of warming has been higher across the North and in the Prairies. In
32955-500: The plight of missing and murdered Indigenous women . It is believed that the first documented European to explore the east coast of Canada was Norse explorer Leif Erikson . In approximately 1000 AD, the Norse built a small short-lived encampment that was occupied sporadically for perhaps 20 years at L'Anse aux Meadows on the northern tip of Newfoundland . No further European exploration occurred until 1497, when seafarer John Cabot explored and claimed Canada's Atlantic coast in
33150-434: The port at Galveston as commerce expanded. The lumber industry quickly expanded and was Texas' largest industry prior to the 20th century. In 1900, Texas suffered the deadliest natural disaster in U.S. history during the Galveston hurricane . On January 10, 1901, the first major oil well in Texas, Spindletop , was found south of Beaumont . Other fields were later discovered nearby in East Texas , West Texas , and under
33345-496: The powerful grip of their jaws after the initial ranid tongue strike. However, there is a correlation found with size of prey relative to body size of the bullfrog. Juveniles and adults typically go after prey that is relative to their own body size. The bullfrog is able to make allowance for light refraction at the water-air interface by striking at a position posterior to the target's perceived location. The comparative ability of bullfrogs to capture submerged prey, compared to that of
33540-485: The present-day Maritimes , while fur traders and Catholic missionaries explored the Great Lakes , Hudson Bay , and the Mississippi watershed to Louisiana . The Beaver Wars broke out in the mid-17th century over control of the North American fur trade. The English established additional settlements in Newfoundland in 1610 along with settlements in the Thirteen Colonies to the south. A series of four wars erupted in colonial North America between 1689 and 1763;
33735-488: The provinces collect more revenue than the federal government, equalization payments are made by the federal government to ensure reasonably uniform standards of services and taxation are kept between the richer and poorer provinces. The major difference between a Canadian province and a territory is that provinces receive their sovereignty from the Crown and power and authority from the Constitution Act, 1867 , whereas territorial governments have powers delegated to them by
33930-736: The rights they support were reaffirmed by section 35 of the Constitution Act, 1982 . These rights may include provision of services, such as healthcare through the Indian Health Transfer Policy , and exemption from taxation. Canada is a federation composed of 10 federated states , called provinces, and three federal territories . These may be grouped into four main regions : Western Canada , Central Canada , Atlantic Canada , and Northern Canada ( Eastern Canada refers to Central Canada and Atlantic Canada together). Provinces and territories have responsibility for social programs such as healthcare , education , and social programs , as well as administration of justice (but not criminal law). Although
34125-429: The settlers. Prior treaties with the Spanish forbade either side from militarizing its native population in any potential conflict between the two nations. Several outbreaks of violence between Native Americans and Texans started to spread in the prelude to the Texas Revolution. Texans accused tribes of stealing livestock. While no proof was found, those in charge of Texas at the time attempted to publicly blame and punish
34320-446: The site. Males moved around and were highly mobile within the choruses. A review of multiple studies on bullfrogs and other anurans noted male behavior within the groups changes according to the population density of the leks . At higher population densities, leks are favored due to the difficulty in defending individual territories among a large population of males. This variance causes differences in how females choose their mates. When
34515-570: The sound the male makes during the breeding season, which sounds similar to a bull bellowing. The bullfrog is large and is commonly eaten throughout its range, especially in the southern United States where they are plentiful. Their presence as a food source has led to bullfrogs being distributed around the world outside of their native range. Bullfrogs have been introduced into the Western United States , South America , Western Europe , China , Japan , and southeast Asia . In these places they are invasive species due to their voracious appetite and
34710-585: The southeast. Canada is also home to the world's northernmost settlement, Canadian Forces Station Alert , on the northern tip of Ellesmere Island —latitude 82.5°N—which lies 817 kilometres (508 mi) from the North Pole. In latitude, Canada's most northerly point of land is Cape Columbia in Nunavut at 83°6′41″N, with its southern extreme at Middle Island in Lake Erie at 41°40′53″N. In longitude, Canada's land extends from Cape Spear , Newfoundland, at 52°37'W, to Mount St. Elias , Yukon Territory, at 141°W. Canada can be divided into seven physiographic regions:
34905-564: The southern part of the range to 3 years in the north, where the colder water slows development. Maximum lifespan in the wild is estimated to be 8 to 10 years, but one frog lived for almost 16 years in captivity. Bullfrogs are voracious, opportunistic, ambush predators that prey on any small animal they can overpower and consume. Bullfrog stomachs have been found to contain rodents , small lizards and snakes , other frogs and toads , other amphibians , crayfish , other crustaceans , small birds, scorpions , tarantulas and bats , as well as
35100-422: The southern regions of Canada, air pollution from both Canada and the United States—caused by metal smelting, burning coal to power utilities, and vehicle emissions—has resulted in acid rain , which has severely impacted waterways, forest growth, and agricultural productivity. Canada is one of the largest greenhouse gas emitters globally , with emissions increased by 16.5 percent between 1990 and 2022. Canada
35295-754: The spread of this lethal fungus as an asymptomatic carrier to the more susceptible, native species of frog it encounters. The bullfrog breeding season typically lasts two to three months. A study of bullfrogs in Michigan showed the males arriving at the breeding site in late May or early June, and remaining in the area into July. The territorial males that occupy sites are usually spaced some 3 to 6 m (9.8 to 19.7 ft) apart and call loudly. At least three different types of calls have been noted in male bullfrogs under different circumstances. These distinctive calls include territorial calls made as threats to other males, advertisement calls made to attract females, and encounter calls which precede combat. The bullfrogs have
35490-450: The state, as well as most of the Southeastern and Midwestern United States. Historically high power usage across the state caused the state's power grid to become overworked and ERCOT (the main operator of the Texas Interconnection grid) declared an emergency and began to implement rolling blackouts across Texas, causing a power crisis . Over 3 million Texans were without power and over 4 million were under boil-water notices. Texas
35685-438: The terms of peace, ceding British North American territories south of the Great Lakes and east of the Mississippi River to the new country. The American war of independence also caused a large out-migration of Loyalists , the settlers who had fought against American independence. Many moved to Canada, particularly Atlantic Canada, where their arrival changed the demographic distribution of the existing territories. New Brunswick
35880-485: The territories to become vacant. This has also been called the alternate or satellite male strategy. After selecting a male, the female deposits eggs in his territory. During the mating grasp, or amplexus , the male rides on top of the female, grasping her just behind her fore limbs. The female chooses a site in shallow water among vegetation, and lays a batch of up to 20,000 eggs, and the male simultaneously releases sperm, resulting in external fertilization . The eggs form
36075-440: The tongue projecting with higher power output than would develop by muscular action alone. Also, such mechanism relieves the tongue's musculature from physiological constraints such as limited peak power output - mechanical efficiency and thermal dependence by uncoupling the activation of the depressor mandibulae's contractile units from actual muscular movement. In other words, the kinematic parameters developed by contribution of
36270-509: The tympana in females are about the same size as the eyes. Bullfrogs measure about 3.6 to 6 in (9 to 15 cm) in snout–to– vent length. They grow fast in the first eight months of life, typically increasing in weight from 5 to 175 g (0.18 to 6.17 oz), and large, mature individuals can weigh up to 500 g (1.1 lb). In some cases bullfrogs have been recorded as attaining 800 g (1.8 lb) and measuring up to 8 in (20 cm) from snout to vent. The American bullfrog
36465-423: The war with a large army and strong economy. The financial crisis of the Great Depression led the Dominion of Newfoundland to relinquish responsible government in 1934 and become a Crown colony ruled by a British governor. After two referendums , Newfoundlanders voted to join Canada in 1949 as a province. Canada's post-war economic growth, combined with the policies of successive Liberal governments, led to
36660-428: The war. The Conscription Crisis of 1917 erupted when the Unionist Cabinet's proposal to augment the military's dwindling number of active members with conscription was met with vehement objections from French-speaking Quebecers. In 1919, Canada joined the League of Nations independently of Britain, and the Statute of Westminster, 1931 , affirmed Canada's independence. The Great Depression in Canada during
36855-428: The wild, but some are captive-reared. The United States is a net importer of frog legs. The American bullfrog is used as a specimen for dissection in many schools across the world. It is the state amphibian of Missouri , Ohio , and Oklahoma . Canada Canada is a country in North America . Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into
37050-410: The world's longest coastline of 243,042 kilometres (151,019 mi). In addition to sharing the world's largest land border with the United States —spanning 8,891 km (5,525 mi) —Canada shares a land border with Greenland (and hence the Kingdom of Denmark ) to the northeast, on Hans Island , and a maritime boundary with France 's overseas collectivity of Saint Pierre and Miquelon to
37245-408: Was captured twice and Texans were defeated in battle in the Dawson massacre . Despite these successes, Mexico did not keep an occupying force in Texas, and the republic survived. The cotton price crash of the 1840s depressed the country's economy. Texas was finally annexed when the expansionist James K. Polk won the election of 1844 . On December 29, 1845, the U.S. Congress admitted Texas to
37440-406: Was demonstrated by territorial males, which floated on the surface of the water with their lungs inflated, displaying their yellow gulars. Males optimize their reproductive fitness in a number of ways. Early arrival at the breeding site, prolonged breeding with continuous sexual activity throughout the season, ownership of a centrally located territory within the chorus, and successful movement between
37635-507: Was in turn split from Nova Scotia as part of a reorganization of Loyalist settlements in the Maritimes, which led to the incorporation of Saint John, New Brunswick , as Canada's first city. To accommodate the influx of English-speaking Loyalists in Central Canada, the Constitutional Act of 1791 divided the province of Canada into French-speaking Lower Canada (later Quebec ) and English-speaking Upper Canada (later Ontario ), granting each its own elected legislative assembly. The Canadas were
37830-410: Was initially rebuffed. This status, and Mexican diplomacy in support of its claims to the territory, also complicated Texas's ability to form foreign alliances and trade relationships. The Comanche Indians furnished the main Native American opposition to the Texas Republic, manifested in multiple raids on settlements . Mexico launched two small expeditions into Texas in 1842. The town of San Antonio
38025-430: Was passed by Parliament, outlining the terms of a negotiated departure from Confederation. In addition to the issues of Quebec sovereignty, a number of crises shook Canadian society in the late 1980s and early 1990s. These included the explosion of Air India Flight 182 in 1985, the largest mass murder in Canadian history; the École Polytechnique massacre in 1989, a university shooting targeting female students; and
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