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67-489: There are estimated to be approximately 700 elephants in the reserve. This population is unsustainably high – it causes significant damage to vegetation, threatening the endangered plant life. The conflict between humans and elephants has also reached critical levels. North of the reserve, the Mwaluganje Elephant Sanctuary has been established to provide a route for elephants to leave the park. The remainder of

134-576: A system of assigning a global conservation status. According to the latest system used by the IUCN, a species can be "Data Deficient" (DD) species – species for which more data and assessment is required before their situation may be determined – as well species comprehensively assessed by the IUCN's species assessment process. A species can be " Near Threatened " (NT) and " Least Concern " (LC), these are species which are considered to have relatively robust and healthy populations, according to

201-409: A Y. The female's clitoris may be 40 cm (16 in). The vulva is found lower than in other herbivores, between the hind legs instead of under the tail. Determining pregnancy status can be difficult due to the animal's large belly. The female's mammary glands occupy the space between the front legs, which puts the suckling calf within reach of the female's trunk. Elephants have a unique organ,

268-449: A day. Elephants tend to stay near water sources. They have morning, afternoon, and nighttime feeding sessions. At midday, elephants rest under trees and may doze off while standing. Sleeping occurs at night while the animal is lying down. Elephants average 3–4 hours of sleep per day. Both males and family groups typically move no more than 20 km (12 mi) a day, but distances as far as 180 km (112 mi) have been recorded in

335-504: A faster gait similar to running. In walking, the legs act as pendulums, with the hips and shoulders moving up and down while the foot is planted on the ground. The fast gait does not meet all the criteria of running, since there is no point where all the feet are off the ground, although the elephant uses its legs much like other running animals, and can move faster by quickening its stride. Fast-moving elephants appear to 'run' with their front legs, but 'walk' with their hind legs and can reach

402-494: A human brain. It is the largest of all terrestrial mammals. While the elephant brain is larger overall, it is proportionally smaller than the human brain . At birth, an elephant's brain already weighs 30–40% of its adult weight. The cerebrum and cerebellum are well developed, and the temporal lobes are so large that they bulge out laterally. Their temporal lobes are proportionally larger than those of other animals, including humans. The throat of an elephant appears to contain

469-779: A long proboscis called a trunk, tusks , large ear flaps, pillar-like legs, and tough but sensitive grey skin. The trunk is prehensile , bringing food and water to the mouth and grasping objects. Tusks, which are derived from the incisor teeth, serve both as weapons and as tools for moving objects and digging. The large ear flaps assist in maintaining a constant body temperature as well as in communication. African elephants have larger ears and concave backs, whereas Asian elephants have smaller ears and convex or level backs. Elephants are scattered throughout sub-Saharan Africa , South Asia, and Southeast Asia and are found in different habitats, including savannahs , forests, deserts, and marshes . They are herbivorous , and they stay near water when it

536-548: A pouch where it can store water for later use. The larynx of the elephant is the largest known among mammals. The vocal folds are anchored close to the epiglottis base. When comparing an elephant's vocal folds to those of a human, an elephant's are proportionally longer, thicker, with a greater cross-sectional area. In addition, they are located further up the vocal tract with an acute slope. The heart of an elephant weighs 12–21 kg (26–46 lb). Its apex has two pointed ends, an unusual trait among mammals. In addition,

603-418: A protective crust. Elephants have difficulty releasing heat through the skin because of their low surface-area-to-volume ratio , which is many times smaller than that of a human. They have even been observed lifting up their legs to expose their soles to the air. Elephants only have sweat glands between the toes, but the skin allows water to disperse and evaporate, cooling the animal. In addition, cracks in

670-541: A single species, Loxodonta africana , but molecular studies have affirmed their status as separate species. Mammoths ( Mammuthus ) are nested within living elephants as they are more closely related to Asian elephants than to African elephants. Another extinct genus of elephant, Palaeoloxodon , is also recognised, which appears to have close affinities with African elephants and to have hybridised with African forest elephants. Over 180 extinct members of order Proboscidea have been described. The earliest proboscideans,

737-440: A strong grasp. The flexibility of the trunk is aided by the numerous wrinkles in the skin. The African elephants have two finger-like extensions at the tip of the trunk that allow them to pluck small food. The Asian elephant has only one and relies more on wrapping around a food item. Asian elephant trunks have better motor coordination . The trunk's extreme flexibility allows it to forage and wrestle other elephants with it. It

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804-661: A top speed of 25 km/h (16 mph). At this speed, most other quadrupeds are well into a gallop, even accounting for leg length. Spring-like kinetics could explain the difference between the motion of elephants and other animals. The cushion pads expand and contract, and reduce both the pain and noise that would come from a very heavy animal moving. Elephants are capable swimmers: they can swim for up to six hours while completely waterborne, moving at 2.1 km/h (1 mph) and traversing up to 48 km (30 mi) continuously. The brain of an elephant weighs 4.5–5.5 kg (10–12 lb) compared to 1.6 kg (4 lb) for

871-432: A year. As the tusk develops, it is topped with smooth, cone-shaped enamel that eventually wanes. The dentine is known as ivory and has a cross-section of intersecting lines, known as "engine turning", which create diamond-shaped patterns. Being living tissue, tusks are fairly soft and about as dense as the mineral calcite . The tusk protrudes from a socket in the skull, and most of it is external. At least one-third of

938-409: Is accessible. They are considered to be keystone species , due to their impact on their environments. Elephants have a fission–fusion society , in which multiple family groups come together to socialise. Females (cows) tend to live in family groups, which can consist of one female with her calves or several related females with offspring. The leader of a female group, usually the oldest cow, is known as

1005-691: Is derived from the Latin word elephas ( genitive elephantis ) ' elephant ' , which is the Latinised form of the ancient Greek ἐλέφας ( elephas ) (genitive ἐλέφαντος ( elephantos )), probably from a non- Indo-European language , likely Phoenician . It is attested in Mycenaean Greek as e-re-pa (genitive e-re-pa-to ) in Linear B syllabic script. As in Mycenaean Greek, Homer used

1072-808: Is longer (up to a maximum of 100 years in the future), where the time period must include both the past and the future, and where the reduction or its causes may not have ceased OR may not be understood OR may not be reversible, based on (and specifying) any of (a) to (e) under A1. B) Geographic range in the form of either B1 (extent of occurrence) OR B2 (area of occupancy) OR both: 1. Extent of occurrence estimated to be less than 5,000 km , and estimates indicating at least two of a-c: 2. Area of occupancy estimated to be less than 500 km , and estimates indicating at least two of a-c: C) Population estimated to number fewer than 2,500 mature individuals and either: 1. An estimated continuing decline of at least 20% within five years or two generations , whichever

1139-411: Is longer, (up to a maximum of 100 years in the future) OR 2. A continuing decline, observed, projected, or inferred, in numbers of mature individuals AND at least one of the following (a-b): D) Population size estimated to number fewer than 250 mature individuals. E) Quantitative analysis showing the probability of extinction in the wild is at least 20% within 20 years or five generations , whichever

1206-417: Is powerful enough to lift up to 350 kg (770 lb), but it also has the precision to crack a peanut shell without breaking the seed. With its trunk, an elephant can reach items up to 7 m (23 ft) high and dig for water in the mud or sand below. It also uses it to clean itself. Individuals may show lateral preference when grasping with their trunks: some prefer to twist them to the left, others to

1273-596: Is typically more worn down, as it is shorter and blunter. For African elephants, tusks are present in both males and females and are around the same length in both sexes, reaching up to 300 cm (9 ft 10 in), but those of males tend to be more massive. In the Asian species, only the males have large tusks. Female Asians have very small tusks, or none at all. Tuskless males exist and are particularly common among Sri Lankan elephants . Asian males can have tusks as long as Africans', but they are usually slimmer and lighter;

1340-552: The Bering Strait into the Holocene, with their latest survival being on Wrangel Island , where they persisted until around 4,000 years ago. Over the course of their evolution, probobscideans grew in size. With that came longer limbs and wider feet with a more digitigrade stance, along with a larger head and shorter neck. The trunk evolved and grew longer to provide reach. The number of premolars, incisors, and canines decreased, and

1407-809: The Early Pleistocene , all non-elephantid probobscidean genera outside of the Americas became extinct with the exception of Stegodon , with gomphotheres dispersing into South America as part of the Great American interchange , and mammoths migrating into North America around 1.5 million years ago. At the end of the Early Pleistocene, around 800,000 years ago the elephantid genus Palaeoloxodon dispersed outside of Africa, becoming widely distributed in Eurasia. Proboscideans were represented by around 23 species at

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1474-668: The Etosha region of Namibia. Elephants go on seasonal migrations in response to changes in environmental conditions. In northern Botswana, they travel 325 km (202 mi) to the Chobe River after the local waterholes dry up in late August. Endangered species (IUCN status) Endangered species , as classified by the International Union for Conservation of Nature (IUCN), are species which have been categorized as very likely to become extinct in their known native ranges in

1541-682: The International Union for Conservation of Nature (IUCN). One of the biggest threats to elephant populations is the ivory trade , as the animals are poached for their ivory tusks. Other threats to wild elephants include habitat destruction and conflicts with local people. Elephants are used as working animals in Asia. In the past, they were used in war; today, they are often controversially put on display in zoos, or employed for entertainment in circuses . Elephants have an iconic status in human culture and have been widely featured in art, folklore, religion, literature, and popular culture. The word elephant

1608-405: The incisors , known as the tusks ; 12 deciduous premolars ; and 12 molars . Unlike most mammals, teeth are not replaced by new ones emerging from the jaws vertically. Instead, new teeth start at the back of the mouth and push out the old ones. The first chewing tooth on each side of the jaw falls out when the elephant is two to three years old. This is followed by four more tooth replacements at

1675-522: The largest living land animals. Three living species are currently recognised: the African bush elephant ( Loxodonta africana ), the African forest elephant ( L. cyclotis ), and the Asian elephant ( Elephas maximus ). They are the only surviving members of the family Elephantidae and the order Proboscidea ; extinct relatives include mammoths and mastodons . Distinctive features of elephants include

1742-507: The matriarch . Males (bulls) leave their family groups when they reach puberty and may live alone or with other males. Adult bulls mostly interact with family groups when looking for a mate. They enter a state of increased testosterone and aggression known as musth , which helps them gain dominance over other males as well as reproductive success. Calves are the centre of attention in their family groups and rely on their mothers for as long as three years. Elephants can live up to 70 years in

1809-423: The pleural cavity . This may allow the animal to deal with the pressure differences when its body is underwater and its trunk is breaking the surface for air. Elephants breathe mostly with the trunk but also with the mouth. They have a hindgut fermentation system, and their large and small intestines together reach 35 m (115 ft) in length. Less than half of an elephant's food intake gets digested, despite

1876-487: The temporal gland , located on both sides of the head. This organ is associated with sexual behaviour, and males secrete a fluid from it when in musth . Females have also been observed with these secretions. Elephants are herbivorous and will eat leaves, twigs, fruit, bark, grass, and roots. African elephants mostly browse , while Asian elephants mainly graze . They can eat as much as 300 kg (660 lb) of food and drink 40 L (11 US gal) of water in

1943-432: The ventricles of the heart split towards the top, a trait also found in sirenians. When upright, the elephant's heart beats around 28 beats per minute and actually speeds up to 35 beats when it lies down. The blood vessels are thick and wide and can hold up under high blood pressure. The lungs are attached to the diaphragm , and breathing relies less on the expanding of the ribcage. Connective tissue exists in place of

2010-592: The "shovel tuskers" like Platybelodon ), choerolophodontids and stegodontids . Around 10 million years ago, the earliest members of the family Elephantidae emerged in Africa, having originated from gomphotheres. Elephantids are distinguished from earlier proboscideans by a major shift in the molar morphology to parallel lophs rather than the cusps of earlier proboscideans, allowing them to become higher-crowned (hypsodont) and more efficient in consuming grass. The Late Miocene saw major climactic changes, which resulted in

2077-520: The African Eritherium and Phosphatherium are known from the late Paleocene . The Eocene included Numidotherium , Moeritherium , and Barytherium from Africa. These animals were relatively small and, some, like Moeritherium and Barytherium were probably amphibious. Later on, genera such as Phiomia and Palaeomastodon arose; the latter likely inhabited more forested areas. Proboscidean diversification changed little during

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2144-654: The Greek word to mean ivory , but after the time of Herodotus , it also referred to the animal. The word elephant appears in Middle English as olyfaunt ( c.  1300 ) and was borrowed from Old French oliphant (12th century). Orycteropodidae [REDACTED] Macroscelididae [REDACTED] Chrysochloridae [REDACTED] Tenrecidae [REDACTED] Procaviidae [REDACTED] Elephantidae [REDACTED] Dugongidae [REDACTED] Trichechidae [REDACTED] Elephants belong to

2211-651: The Oligocene. One notable species of this epoch was Eritreum melakeghebrekristosi of the Horn of Africa , which may have been an ancestor to several later species. early proboscideans, e.g. Moeritherium [REDACTED] Deinotheriidae [REDACTED] Mammutidae [REDACTED] Gomphotheriidae [REDACTED] Stegodontidae [REDACTED] Loxodonta [REDACTED] Palaeoloxodon [REDACTED] Mammuthus [REDACTED] Elephas [REDACTED] A major event in proboscidean evolution

2278-475: The ages of four to six, 9–15, 18–28, and finally in their early 40s. The final (usually sixth) set must last the elephant the rest of its life. Elephant teeth have loop-shaped dental ridges, which are more diamond-shaped in African elephants. The tusks of an elephant are modified second incisors in the upper jaw. They replace deciduous milk teeth at 6–12 months of age and keep growing at about 17 cm (7 in)

2345-454: The assessment authors. "Endangered" (EN) species lie between " Vulnerable " (VU) and " Critically Endangered " (CR) species. A species must adhere to certain criteria in order to be placed in any of the afore-mentioned conservation status categories, according to the assessment. "Threatened" is a category including all those species determined to be Vulnerable, Endangered or Critically Endangered. Although in general conversation

2412-621: The beginning of the Late Pleistocene . Proboscideans underwent a dramatic decline during the Late Pleistocene as part of the Late Pleistocene extinctions of most large mammals globally, with all remaining non-elephantid proboscideans (including Stegodon , mastodons , and the American gomphotheres Cuvieronius and Notiomastodon ) and Palaeoloxodon becoming extinct, with mammoths only surviving in relict populations on islands around

2479-453: The cheek teeth (molars and premolars) became longer and more specialised. The incisors developed into tusks of different shapes and sizes. Several species of proboscideans became isolated on islands and experienced insular dwarfism , some dramatically reducing in body size, such as the 1 m (3 ft 3 in) tall dwarf elephant species Palaeoloxodon falconeri . Elephants are the largest living terrestrial animals. Some species of

2546-466: The conservation status criteria has changed, numerous species have been re-assessed as not endangered, nonetheless the total number of species considered endangered has increased as more new species are assessed for the first time each year. According to the 3.1 version of the IUCN conservation status system from 2001, a species is listed as endangered when it meets any of the following criteria from A to E. A) Reduction in population size based on any of

2613-402: The decline and extinction of many proboscidean groups. The earliest members of the modern genera of Elephantidae appeared during the latest Miocene–early Pliocene around 5 million years ago. The elephantid genera Elephas (which includes the living Asian elephant) and Mammuthus (mammoths) migrated out of Africa during the late Pliocene, around 3.6 to 3.2 million years ago. Over the course of

2680-420: The ear is considerably thinner. Elephants are typically grey, but African elephants look brown or reddish after rolling in coloured mud. Asian elephants have some patches of depigmentation, particularly on the head. Calves have brownish or reddish hair, with the head and back being particularly hairy. As elephants mature, their hair darkens and becomes sparser, but dense concentrations of hair and bristles remain on

2747-525: The elephant uses its trunk as a snorkel . The trunk also acts as a sense organ. Its sense of smell may be four times greater than a bloodhound 's nose. The infraorbital nerve , which makes the trunk sensitive to touch, is thicker than both the optic and auditory nerves. Whiskers grow all along the trunk, and are particularly packed at the tip, where they contribute to its tactile sensitivity. Unlike those of many mammals, such as cats and rats, elephant whiskers do not move independently ("whisk") to sense

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2814-402: The environment; the trunk itself must move to bring the whiskers into contact with nearby objects. Whiskers grow in rows along each side on the ventral surface of the trunk, which is thought to be essential in helping elephants balance objects there, whereas they are more evenly arranged on the dorsal surface. The number and patterns of whiskers are distinctly different between species. Damaging

2881-410: The extinct elephant genus Palaeoloxodon considerably exceeded modern elephants in size making them among the largest land mammals ever. The skeleton is made up of 326–351 bones. The vertebrae are connected by tight joints, which limit the backbone's flexibility. African elephants have 21 pairs of ribs, while Asian elephants have 19 or 20 pairs. The skull contains air cavities ( sinuses ) that reduce

2948-585: The family Elephantidae , the sole remaining family within the order Proboscidea . Their closest extant relatives are the sirenians ( dugongs and manatees ) and the hyraxes , with which they share the clade Paenungulata within the superorder Afrotheria . Elephants and sirenians are further grouped in the clade Tethytheria . Three species of living elephants are recognised; the African bush elephant ( Loxodonta africana ), forest elephant ( Loxodonta cyclotis ), and Asian elephant ( Elephas maximus ). African elephants were traditionally considered

3015-400: The following: 1. An observed, estimated, inferred or suspected population size reduction of ≥ 70% over the last 10 years or three generations , whichever is the longer, where the causes of the reduction are reversible AND understood AND ceased , based on (and specifying) any of the following: 2. An observed, estimated, inferred or suspected population size reduction of ≥ 50% occurred over

3082-519: The front and hind limbs can support an elephant's weight, although 60% is borne by the front. The position of the limbs and leg bones allows an elephant to stand still for extended periods of time without tiring. Elephants are incapable of turning their manus as the ulna and radius of the front legs are secured in pronation . Elephants may also lack the pronator quadratus and pronator teres muscles or have very small ones. The circular feet of an elephant have soft tissues, or "cushion pads" beneath

3149-542: The largest ear flaps. The ossicles are adapted for hearing low frequencies, being most sensitive at 1 kHz . Lacking a lacrimal apparatus (tear duct), the eye relies on the harderian gland in the orbit to keep it moist. A durable nictitating membrane shields the globe. The animal's field of vision is compromised by the location and limited mobility of the eyes. Elephants are dichromats and they can see well in dim light but not in bright light. The elongated and prehensile trunk, or proboscis , consists of both

3216-402: The largest recorded was 302 cm (9 ft 11 in) long and weighed 39 kg (86 lb). Hunting for elephant ivory in Africa and Asia has resulted in an effective selection pressure for shorter tusks and tusklessness. An elephant's skin is generally very tough, at 2.5 cm (1 in) thick on the back and parts of the head. The skin around the mouth, anus , and inside of

3283-615: The last 10 years or three generations, whichever is the longer, where the reduction or its causes may not have ceased OR may not be understood OR may not be reversible , based on (and specifying) any of (a) to (e) under A1. 3. A population size reduction of ≥ 50%, projected or suspected to be met within the next 10 years or three generations, whichever is the longer (up to a maximum of 100 years), based on (and specifying) any of (b) to (e) under A1. 4. An observed, estimated, inferred, projected or suspected population size reduction of ≥ 50% over any 10 year or three-generation period, whichever

3350-449: The manus or pes , which allow them to bear the animal's great mass. They appear to have a sesamoid , an extra "toe" similar in placement to a giant panda 's extra "thumb", that also helps in weight distribution. As many as five toenails can be found on both the front and hind feet. Elephants can move both forward and backward, but are incapable of trotting , jumping , or galloping . They can move on land only by walking or ambling :

3417-425: The middle with a thinner tip and supported by a thicker base. They contain numerous blood vessels called capillaries . Warm blood flows into the capillaries, releasing excess heat into the environment. This effect is increased by flapping the ears back and forth. Larger ear surfaces contain more capillaries, and more heat can be released. Of all the elephants, African bush elephants live in the hottest climates and have

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3484-525: The near future. On the IUCN Red List , endangered is the second-most severe conservation status for wild populations in the IUCN's schema after critically endangered . In 2012, the IUCN Red List featured 3,079 animal and 2,655 plant species as endangered worldwide. The figures for 1998 were 1,102 and 1,197 respectively. The IUCN Red List is a list of species which have been assessed according to

3551-413: The nose and upper lip, which fuse in early fetal development. This versatile appendage contains up to 150,000 separate muscle fascicles , with no bone and little fat. These paired muscles consist of two major types: superficial (surface) and internal. The former are divided into dorsal, ventral , and lateral muscles, while the latter are divided into transverse and radiating muscles. The muscles of

3618-434: The park boundary is fenced to prevent the elephants from invading farmland. The Kenya Wildlife Service has plans to relocate up to 400 elephants from Shimba to Tsavo East National Park in 2005. Shimba Hills contains Kenya's only population of sable antelope . There are about 100 in the park. This Kenya location article is a stub . You can help Misplaced Pages by expanding it . Elephants Elephants are

3685-423: The process lasting a day. An elephant's bladder can store up to 18 litres of urine and its kidneys can produce more than 50 litres of urine per day. A male elephant's testes, like other Afrotheria , are internally located near the kidneys. The penis can be as long as 100 cm (39 in) with a 16 cm (6 in) wide base. It curves to an 'S' when fully erect and has an orifice shaped like

3752-493: The right. Elephant trunks are capable of powerful siphoning. They can expand their nostrils by 30%, leading to a 64% greater nasal volume, and can breathe in almost 30 times faster than a human sneeze, at over 150 m/s (490 ft/s). They suck up water, which is squirted into the mouth or over the body. The trunk of an adult Asian elephant is capable of retaining 8.5 L (2.2 US gal) of water. They will also sprinkle dust or grass on themselves. When underwater,

3819-401: The skin may reduce dehydration and allow for increased thermal regulation in the long term. To support the animal's weight, an elephant's limbs are positioned more vertically under the body than in most other mammals. The long bones of the limbs have cancellous bones in place of medullary cavities . This strengthens the bones while still allowing haematopoiesis (blood cell creation). Both

3886-456: The skull, which serve as protection. Because of the size of the head, the neck is relatively short to provide better support. Elephants are homeotherms and maintain their average body temperature at ~ 36 °C (97 °F), with a minimum of 35.2 °C (95.4 °F) during the cool season, and a maximum of 38.0 °C (100.4 °F) during the hot dry season. Elephant ear flaps, or pinnae , are 1–2 mm (0.039–0.079 in) thick in

3953-482: The terms "endangered species" and "threatened species" may mean other things, for the purposes of the current IUCN system, the List uses the terms "endangered" and "threatened" to denote species to which certain criteria apply. Note older or other, such as national, status systems may use other criteria. Some examples of species classified as endangered by the IUCN are listed below: As more information becomes available, or as

4020-472: The tip of the tail and parts of the head and genitals. Normally, the skin of an Asian elephant is covered with more hair than its African counterpart. Their hair is thought to help them lose heat in their hot environments. Although tough, an elephant's skin is very sensitive and requires mud baths to maintain moisture and protection from burning and insect bites. After bathing, the elephant will usually use its trunk to blow dust onto its body, which dries into

4087-514: The trunk connect to a bony opening in the skull. The nasal septum consists of small elastic muscles between the nostrils, which are divided by cartilage at the base. A unique proboscis nerve – a combination of the maxillary and facial nerves – lines each side of the appendage. As a muscular hydrostat , the trunk moves through finely controlled muscle contractions, working both with and against each other. Using three basic movements: bending, twisting, and longitudinal stretching or retracting,

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4154-422: The trunk has near unlimited flexibility. Objects grasped by the end of the trunk can be moved to the mouth by curving the appendage inward. The trunk can also bend at different points by creating stiffened "pseudo-joints". The tip can be moved in a way similar to the human hand. The skin is more elastic on the dorsal side of the elephant trunk than underneath; allowing the animal to stretch and coil while maintaining

4221-508: The trunk would be detrimental to an elephant's survival, although in rare cases, individuals have survived with shortened ones. One trunkless elephant has been observed to graze using its lips with its hind legs in the air and balancing on its front knees. Floppy trunk syndrome is a condition of trunk paralysis recorded in African bush elephants and involves the degeneration of the peripheral nerves and muscles. The disorder has been linked to lead poisoning. Elephants usually have 26 teeth:

4288-433: The tusk contains the pulp , and some have nerves that stretch even further. Thus, it would be difficult to remove it without harming the animal. When removed, ivory will dry up and crack if not kept cool and wet. Tusks function in digging, debarking, marking, moving objects, and fighting. Elephants are usually right- or left-tusked, similar to humans, who are typically right- or left-handed . The dominant, or "master" tusk,

4355-419: The weight of the skull while maintaining overall strength. These cavities give the inside of the skull a honeycomb -like appearance. By contrast, the lower jaw is dense. The cranium is particularly large and provides enough room for the attachment of muscles to support the entire head. The skull is built to withstand great stress, particularly when fighting or using the tusks. The brain is surrounded by arches in

4422-463: The wild. They communicate by touch, sight, smell, and sound; elephants use infrasound and seismic communication over long distances. Elephant intelligence has been compared with that of primates and cetaceans . They appear to have self-awareness , and possibly show concern for dying and dead individuals of their kind. African bush elephants and Asian elephants are listed as endangered and African forest elephants as critically endangered by

4489-650: Was the collision of Afro-Arabia with Eurasia, during the Early Miocene, around 18–19 million years ago, allowing proboscideans to disperse from their African homeland across Eurasia and later, around 16–15 million years ago into North America across the Bering Land Bridge . Proboscidean groups prominent during the Miocene include the deinotheres , along with the more advanced elephantimorphs , including mammutids (mastodons), gomphotheres , amebelodontids (which includes

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