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116-414: The term refers to animals who can imitate (though not necessarily understand) human speech. Parrots , for example, repeat phrases of human speech through exposure. There were parrots that learnt to use words in proper context and had meaningful dialogues with humans. Alex , a grey parrot , understood questions about color, shape, size, number etc. of objects and would provide a one-word answer to them. He

232-618: A chief is merely a person of influence, and leadership is based on personal qualities. The family forms the main social unit , with most members being related by birth or marriage. The anthropologist Marshall Sahlins described hunter-gatherers as the " original affluent society " due to their extended leisure time: Sahlins estimated that adults in hunter gatherer societies work three to five hours per day. This perspective has been challenged by other researchers, who have pointed out high mortality rates and perennial warfare in hunter-gatherer societies. Proponents of Sahlins' view argue that

348-415: A multi-layered network of cooperating, distinct, or even competing social groups – from families and peer groups to corporations and political states . As such, social interactions between humans have established a wide variety of values, social norms , languages , and traditions (collectively termed institutions ), each of which bolsters human society . Humans are also highly curious , with

464-668: A theory of mind . The human mind is capable of introspection , private thought , imagination , volition , and forming views on existence . This has allowed great technological advancements and complex tool development through complex reasoning and the transmission of knowledge to subsequent generations through language . Humans have had a dramatic effect on the environment . They are apex predators , being rarely preyed upon by other species. Human population growth , industrialization, land development, overconsumption and combustion of fossil fuels have led to environmental destruction and pollution that significantly contributes to

580-649: A classification comes from sociologist Gerhard Lenski who lists: (1) hunting and gathering; (2) horticultural; (3) agricultural; and (4) industrial; as well as specialized societies (e.g., fishing or herding). Some cultures have developed over time toward more complex forms of organization and control. This cultural evolution has a profound effect on patterns of community. Hunter-gatherer tribes have, at times, settled around seasonal food stocks to become agrarian villages. Villages have grown to become towns and cities. Cities have turned into city-states and nation-states . However, these processes are not unidirectional. In

696-443: A consequence of better nutrition, healthcare, and living conditions. The average mass of an adult human is 59 kg (130 lb) for females and 77 kg (170 lb) for males. Like many other conditions, body weight and body type are influenced by both genetic susceptibility and environment and varies greatly among individuals. Humans have a far faster and more accurate throw than other animals. Humans are also among

812-425: A decreased need for agricultural labor leads to urbanization . Industrial societies are often capitalist , and have high degrees of inequality along with high social mobility , as businesspeople use the market to amass large amounts of wealth. Working conditions in factories are generally restrictive and harsh. Workers, who have common interests, may organize into labor unions to advance those interests. On

928-435: A distinctive culture and institutions ; a given society may be described as the sum total of such relationships among its constituent members. Human social structures are complex and highly cooperative, featuring the specialization of labor via social roles . Societies construct roles and other patterns of behavior by deeming certain actions or concepts acceptable or unacceptable—these expectations around behavior within

1044-453: A diverse range of subgroups, and the makeup of these ethnic groups can change over time at both the collective and individual level. Ethnic groupings can play a powerful role in the social identity and solidarity of ethnopolitical units. Ethnic identity has been closely tied to the rise of the nation state as the predominant form of political organization in the 19th and 20th centuries. Governments create laws and policies that affect

1160-426: A division of labor where women take on reproductive labor and other domestic roles. Gender roles have varied historically, and challenges to predominant gender norms have recurred in many societies. All human societies organize, recognize and classify types of social relationships based on relations between parents, children and other descendants ( consanguinity ), and relations through marriage ( affinity ). There

1276-455: A dog making a sound that resembles a phrase says the phrase back to the dog, who then repeats the sound and is rewarded with a treat. Eventually the dog learns a modified version of the original sound. Dogs have limited vocal imitation skills, so these sounds usually need to be shaped by selective attention and social reward. Great apes mimicking human speech is rare although some of them have attempted to do so by often watching and mimicking

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1392-419: A few other places), saw the emergence of agriculture and permanent human settlement ; in turn, this led to the development of civilization and kickstarted a period of continuous (and ongoing) population growth and rapid technological change . Since then, a number of civilizations have risen and fallen, while a number of sociocultural and technological developments have resulted in significant changes to

1508-651: A given society are known as societal norms . So far as it is collaborative , a society can enable its members to benefit in ways that would otherwise be difficult on an individual basis. Societies vary based on level of technology and type of economic activity. Larger societies with larger food surpluses often exhibit stratification or dominance patterns. Societies can have many different forms of government, various ways of understanding kinship, and different gender roles. Human behavior varies immensely between different societies; humans shape society, but society in turn shapes human beings. The term "society" often refers to

1624-463: A great capacity for altering their habitats by means of technology, irrigation , urban planning , construction, deforestation and desertification . Human settlements continue to be vulnerable to natural disasters , especially those placed in hazardous locations and with low quality of construction. Grouping and deliberate habitat alteration is often done with the goals of providing protection, accumulating comforts or material wealth, expanding

1740-612: A higher body fat percentage. At puberty , humans develop secondary sex characteristics . Females are capable of pregnancy , usually between puberty, at around 12 years old, and menopause , around the age of 50. As omnivorous creatures, they are capable of consuming a wide variety of plant and animal material, and have used fire and other forms of heat to prepare and cook food since the time of Homo erectus . Humans can survive for up to eight weeks without food and several days without water . Humans are generally diurnal , sleeping on average seven to nine hours per day. Childbirth

1856-475: A human can lose personhood (such as by going into a persistent vegetative state ). Humans are apes ( superfamily Hominoidea ). The lineage of apes that eventually gave rise to humans first split from gibbons (family Hylobatidae) and orangutans (genus Pongo ), then gorillas (genus Gorilla ), and finally, chimpanzees and bonobos (genus Pan ). The last split, between the human and chimpanzee–bonobo lineages, took place around 8–4 million years ago, in

1972-483: A large area. Lenski differentiates between horticultural and agrarian societies by the use of the plow . Larger food supplies due to improved technology mean agrarian communities are larger than horticultural communities. A greater food surplus results in towns that become centers of trade. Economic trade in turn leads to increased specialization, including a ruling class, as well as educators, craftspeople, merchants, and religious figures, who do not directly participate in

2088-487: A large group of people in an ordered community, in a country or several similar countries, or the 'state of being with other people', e.g. "they lived in medieval society." The term dates back to at least 1513 and comes from the 12th-century French societe (modern French société ) meaning 'company'. Societe was in turn derived from the Latin word societas ('fellowship,' 'alliance', 'association'), which in turn

2204-581: A more barrel-shaped chests in contrast to the funnel shape of other apes, an adaptation for bipedal respiration. Apart from bipedalism and brain size, humans differ from chimpanzees mostly in smelling , hearing and digesting proteins . While humans have a density of hair follicles comparable to other apes, it is predominantly vellus hair , most of which is so short and wispy as to be practically invisible. Humans have about 2 million sweat glands spread over their entire bodies, many more than chimpanzees, whose sweat glands are scarce and are mainly located on

2320-420: A more complex division of labor. Specialized roles in horticultural societies include craftspeople, shamans (religious leaders), and traders. This role specialization allows horticultural societies to create a variety of artifacts. Scarce, defensible resources can lead to wealth inequalities in horticultural political systems. Agrarian societies use agricultural technological advances to cultivate crops over

2436-499: A much clearer picture of life at the time. Between the 8th and 6th century BCE, Europe entered the classical antiquity age, a period when ancient Greece and ancient Rome flourished. Around this time other civilizations also came to prominence. The Maya civilization started to build cities and create complex calendars . In Africa, the Kingdom of Aksum overtook the declining Kingdom of Kush and facilitated trade between India and

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2552-401: A pre-industrial society, food production, which is carried out through the use of human and animal labor , is the main economic activity. These societies can be subdivided according to their level of technology and their method of producing food. These subdivisions are hunting and gathering, pastoral, horticultural, and agrarian. The main form of food production in hunter-gatherer societies is

2668-526: A rate comparable to other primates (although humans kill adults at a relatively high rate and have a relatively low rate of infanticide ). Another school of thought suggests that war is a relatively recent phenomenon and appeared due to changing social conditions. While not settled, the current evidence suggests warlike behavior only became common about 10,000 years ago, and in many regions even more recently. Phylogenetic analysis predicts 2% of human deaths to be caused by homicide, which approximately matches

2784-447: A result, humans are a cosmopolitan species found in almost all regions of the world, including tropical rainforest , arid desert , extremely cold arctic regions , and heavily polluted cities; in comparison, most other species are confined to a few geographical areas by their limited adaptability. The human population is not, however, uniformly distributed on the Earth 's surface, because

2900-602: A shared need for defense. Sedentary life, in Khaldun's view, was marked by secularization, decreased social cohesion, and increased interest in luxury. Rizal was a Filipino nationalist living toward the end of the Spanish Colonial Period who theorized about colonial societies. Rizal argued that indolence , which the Spanish used to justify their colonial occupation, was instead caused by the colonial occupation. Rizal compared

3016-632: A similar species. Migrating out of Africa , they gradually replaced and interbred with local populations of archaic humans. Multiple hypotheses for the extinction of archaic human species such as Neanderthals include competition, violence , interbreeding with Homo sapiens , or inability to adapt to climate change . Humans began exhibiting behavioral modernity about 160,000–60,000 years ago. For most of their history, humans were nomadic hunter-gatherers. The Neolithic Revolution , which began in Southwest Asia around 13,000 years ago (and separately in

3132-515: A simple linear or branched progression but involved interbreeding between related species . Genomic research has shown that hybridization between substantially diverged lineages was common in human evolution. DNA evidence suggests that several genes of Neanderthal origin are present among all non sub-Saharan-African populations, and Neanderthals and other hominins, such as Denisovans , may have contributed up to 6% of their genome to present-day non sub-Saharan-African humans. Human evolution

3248-403: A social category that identify together as a group based on shared attributes that distinguish them from other groups. These shared attributes can be a common set of traditions, ancestry , language , history, society, culture, nation, religion, or social treatment within their residing area. There is no generally accepted definition of what constitutes an ethnic group, and humans have evolved

3364-451: A successful labor increased significantly during the 20th century in wealthier countries with the advent of new medical technologies. In contrast, pregnancy and natural childbirth remain hazardous ordeals in developing regions of the world, with maternal death rates approximately 100 times greater than in developed countries. Both the mother and the father provide care for human offspring, in contrast to other primates, where parental care

3480-406: A wide variety of plant and animal material. Human groups have adopted a range of diets from purely vegan to primarily carnivorous . In some cases, dietary restrictions in humans can lead to deficiency diseases ; however, stable human groups have adapted to many dietary patterns through both genetic specialization and cultural conventions to use nutritionally balanced food sources. The human diet

3596-511: Is 38 weeks, but a normal pregnancy can vary by up to 37 days. Embryonic development in the human covers the first eight weeks of development; at the beginning of the ninth week the embryo is termed a fetus . Humans are able to induce early labor or perform a caesarean section if the child needs to be born earlier for medical reasons. In developed countries, infants are typically 3–4 kg (7–9 lb) in weight and 47–53 cm (19–21 in) in height at birth. However, low birth weight

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3712-485: Is a mixture of the two parental sets. Among the 23 pairs of chromosomes, there are 22 pairs of autosomes and one pair of sex chromosomes . Like other mammals, humans have an XY sex-determination system , so that females have the sex chromosomes XX and males have XY. Genes and environment influence human biological variation in visible characteristics, physiology, disease susceptibility and mental abilities. The exact influence of genes and environment on certain traits

3828-424: Is a population decline in the winter months of this realm. Humans established nation-states in the other seven realms, such as South Africa , India , Russia , Australia , Fiji , United States and Brazil (each located in a different biogeographical realm). By using advanced tools and clothing , humans have been able to extend their tolerance to a wide variety of temperatures, humidities , and altitudes. As

3944-563: Is also a third type of familial relationship applied to godparents or adoptive children ( fictive ). These culturally defined relationships are referred to as kinship. In many societies, it is one of the most important social organizing principles and plays a role in transmitting status and inheritance .  All societies have rules of incest taboo , according to which marriage between certain kinds of kin relations are prohibited; and some societies also have rules of preferential marriage with certain other kin relations. Human ethnic groups are

4060-664: Is also documented to have asked an existential question. Another grey parrot, N'kisi , could use 950 words in proper context, was able to form sentences and even understood the concept of grammatical tense . Researchers have attempted to teach great apes ( chimpanzees , gorillas and orangutans ) spoken language with poor results as they can only be taught how to say one or a few basic or limited words or phrases or less, and sign language with significantly better results as they can be very creative with various signs like those of deaf people . In this regard, there are now numerous studies and an extensive bibliography. An owner hears

4176-402: Is characterized by a number of morphological , developmental , physiological , and behavioral changes that have taken place since the split between the last common ancestor of humans and chimpanzees . The most significant of these adaptations are hairlessness , obligate bipedalism, increased brain size and decreased sexual dimorphism ( neoteny ). The relationship between all these changes

4292-456: Is common in developing countries, and contributes to the high levels of infant mortality in these regions. Compared with other species, human childbirth is dangerous, with a much higher risk of complications and death. The size of the fetus's head is more closely matched to the pelvis than in other primates. The reason for this is not completely understood, but it contributes to a painful labor that can last 24 hours or more. The chances of

4408-421: Is dangerous, with a high risk of complications and death . Often, both the mother and the father provide care for their children, who are helpless at birth . Humans have a large, highly developed, and complex prefrontal cortex , the region of the brain associated with higher cognition. Humans are highly intelligent and capable of episodic memory ; they have flexible facial expressions, self-awareness , and

4524-472: Is generally aging, with the median age around 40 years. In the developing world , the median age is between 15 and 20 years. While one in five Europeans is 60 years of age or older, only one in twenty Africans is 60 years of age or older. In 2012, the United Nations estimated that there were 316,600 living centenarians (humans of age 100 or older) worldwide. Humans are omnivorous , capable of consuming

4640-443: Is inherited only from the mother, geneticists have concluded that the last female common ancestor whose genetic marker is found in all modern humans, the so-called mitochondrial Eve , must have lived around 90,000 to 200,000 years ago. Most human reproduction takes place by internal fertilization via sexual intercourse , but can also occur through assisted reproductive technology procedures. The average gestation period

4756-408: Is mostly done by the mother. Helpless at birth , humans continue to grow for some years, typically reaching sexual maturity at 15 to 17 years of age. The human life span has been split into various stages ranging from three to twelve. Common stages include infancy , childhood , adolescence , adulthood and old age . The lengths of these stages have varied across cultures and time periods but

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4872-557: Is mostly focused on processing raw materials into finished products. Present-day societies vary in their degree of industrialization, with some using mostly newer energy sources (e.g. coal, oil , and nuclear energy ), and others continuing to rely on human and animal power. Industrialization is associated with population booms and the growth of cities. Increased productivity, as well as the stability caused by improved transportation, leads to decreased mortality and resulting population growth. Centralized production of goods in factories and

4988-513: Is not well understood. While no humans – not even monozygotic twins  – are genetically identical, two humans on average will have a genetic similarity of 99.5%-99.9%. This makes them more homogeneous than other great apes, including chimpanzees. This small variation in human DNA compared to many other species suggests a population bottleneck during the Late Pleistocene (around 100,000 years ago), in which

5104-548: Is prominently reflected in human culture and has led to the development of food science . Society This is an accepted version of this page A society ( / s ə ˈ s aɪ ə t i / ) is a group of individuals involved in persistent social interaction or a large social group sharing the same spatial or social territory , typically subject to the same political authority and dominant cultural expectations. Societies are characterized by patterns of relationships ( social relations ) between individuals who share

5220-418: Is seen as a characteristic that differentiates humans from other animals. Trade has even been cited as a practice that gave Homo sapiens a major advantage over other hominids; evidence suggests early H. sapiens made use of long-distance trade routes to exchange goods and ideas, leading to cultural explosions and providing additional food sources when hunting was sparse. Such trade networks did not exist for

5336-510: Is similar to hunter-gatherers (about 50 individuals), but unlike hunter gatherers, pastoral societies usually consist of multiple communities—the average pastoral society contains thousands of people. This is because pastoral groups tend to live in open areas where movement is easy, which enables political integration. Pastoral societies tend to create a food surplus, and have specialized labor and high levels of inequality. Fruits and vegetables grown in garden plots, that have been cleared from

5452-445: Is the subject of ongoing debate. Hylobatidae ( gibbons ) Pongo abelii Pongo tapanuliensis Pongo pygmaeus Gorilla gorilla Gorilla beringei Pan troglodytes Pan paniscus Homo sapiens (humans) Until about 12,000 years ago, all humans lived as hunter-gatherers . The Neolithic Revolution (the invention of agriculture ) first took place in Southwest Asia and spread through large parts of

5568-654: Is typified by an unusually rapid growth spurt during adolescence. Human females undergo menopause and become infertile at around the age of 50. It has been proposed that menopause increases a woman's overall reproductive success by allowing her to invest more time and resources in her existing offspring, and in turn their children (the grandmother hypothesis ), rather than by continuing to bear children into old age. The life span of an individual depends on two major factors, genetics and lifestyle choices. For various reasons, including biological/genetic causes, women live on average about four years longer than men. As of 2018 ,

5684-534: The British Empire expanded to become the world's largest empire . A tenuous balance of power among European nations collapsed in 1914 with the outbreak of the First World War , one of the deadliest conflicts in history. In the 1930s, a worldwide economic crisis led to the rise of authoritarian regimes and a Second World War , involving almost all of the world's countries . The war's destruction led to

5800-568: The Caral–Supe civilization is the oldest complex civilization in the Americas. Astronomy and mathematics were also developed and the Great Pyramid of Giza was built. There is evidence of a severe drought lasting about a hundred years that may have caused the decline of these civilizations, with new ones appearing in the aftermath. Babylonians came to dominate Mesopotamia while others, such as

5916-501: The Church would provide centralized authority and education. In the Middle East, Islam became the prominent religion and expanded into North Africa. It led to an Islamic Golden Age , inspiring achievements in architecture , the revival of old advances in science and technology, and the formation of a distinct way of life. The Christian and Islamic worlds would eventually clash, with

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6032-470: The Homo genus. The name " Homo sapiens " means 'wise man' or 'knowledgeable man'. There is disagreement if certain extinct members of the genus, namely Neanderthals , should be included as a separate species of humans or as a subspecies of H. sapiens . Human is a loanword of Middle English from Old French humain , ultimately from Latin hūmānus , the adjectival form of homō ('man' – in

6148-566: The Kingdom of England , the Kingdom of France and the Holy Roman Empire declaring a series of holy wars to regain control of the Holy Land from Muslims . In the Americas, between 200 and 900 CE Mesoamerica was in its Classic Period , while further north, complex Mississippian societies would arise starting around 800 CE. The Mongol Empire would conquer much of Eurasia in the 13th and 14th centuries. Over this same time period,

6264-819: The Mali Empire in Africa grew to be the largest empire on the continent, stretching from Senegambia to Ivory Coast . Oceania would see the rise of the Tuʻi Tonga Empire which expanded across many islands in the South Pacific. By the late 15th century, the Aztecs and Inca had become the dominant power in Mesoamerica and the Andes , respectively. The early modern period in Europe and

6380-572: The Old World over the following millennia. It also occurred independently in Mesoamerica (about 6,000 years ago), China, Papua New Guinea , and the Sahel and West Savanna regions of Africa. Access to food surplus led to the formation of permanent human settlements , the domestication of animals and the use of metal tools for the first time in history. Agriculture and sedentary lifestyle led to

6496-464: The Pokémon franchise. Meowth of Team Rocket is considered a unique Pokémon in that he can understand and use human language, even serving as a translator for his fellow Pokémon, where they can only usually call out their own names verbally. Human Humans ( Homo sapiens , meaning "thinking man" or "wise man") or modern humans are the most common and widespread species of primate , and

6612-629: The Poverty Point culture , Minoans and the Shang dynasty , rose to prominence in new areas. The Late Bronze Age collapse around 1200 BCE resulted in the disappearance of a number of civilizations and the beginning of the Greek Dark Ages . During this period iron started replacing bronze, leading to the Iron Age . In the 5th century BCE, history started being recorded as a discipline , which provided

6728-766: The colonization of the Americas and the Columbian Exchange . This expansion led to the Atlantic slave trade and the genocide of Native American peoples . This period also marked the Scientific Revolution , with great advances in mathematics , mechanics , astronomy and physiology . The late modern period (1800–present) saw the Technological and Industrial Revolution bring such discoveries as imaging technology , major innovations in transport and energy development . Influenced by Enlightenment ideals,

6844-456: The common good or in the name of the public interest , but as property they own. Caste systems , as historically found in South Asia, are associated with agrarian societies, where lifelong agricultural routines depend upon a rigid sense of duty and discipline. The scholar Donald Brown suggests that an emphasis in the modern West on personal liberties and freedoms was in large part a reaction to

6960-424: The means of production . Symbolic interactionism is a microsociological theory that focuses on individuals and how the individual relates to society. Symbolic interactionists study humans' use of shared language to create common symbols and meanings, and use this frame of reference to understand how individuals interact to create symbolic worlds, and in turn, how these worlds shape individual behaviors . In

7076-510: The Americas and Europe experienced a period of political revolutions known as the Age of Revolution . The Napoleonic Wars raged through Europe in the early 1800s, Spain lost most of its colonies in the New World , while Europeans continued expansion into Africa  – where European control went from 10% to almost 90% in less than 50 years  – and Oceania. In the 19th century,

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7192-829: The Mediterranean. In West Asia, the Achaemenid Empire 's system of centralized governance became the precursor to many later empires, while the Gupta Empire in India and the Han dynasty in China have been described as golden ages in their respective regions. Following the fall of the Western Roman Empire in 476, Europe entered the Middle Ages . During this period, Christianity and

7308-792: The Near East ( c.  1450 –1800) began with the final defeat of the Byzantine Empire , and the rise of the Ottoman Empire . Meanwhile, Japan entered the Edo period , the Qing dynasty rose in China and the Mughal Empire ruled much of India. Europe underwent the Renaissance , starting in the 15th century, and the Age of Discovery began with the exploring and colonizing of new regions. This included

7424-495: The United States, the richest tenth of humans hold more than seven-tenths of those regions' total wealth. The willingness of humans to kill other members of their species en masse through organized conflict (i.e. war) has long been the subject of debate. One school of thought is that war evolved as a means to eliminate competitors, and that violence is an innate human characteristic. Humans commit violence against other humans at

7540-437: The ability to change affiliation with social groups relatively easily, including leaving groups with previously strong alliances, if doing so is seen as providing personal advantages. Ethnicity is separate from the concept of race , which is based on physical characteristics, although both are socially constructed . Assigning ethnicity to a certain population is complicated, as even within common ethnic designations there can be

7656-682: The access to electronic information resources increased at the beginning of the 21st century, special attention was extended from the information society to the knowledge society. A knowledge society generates, shares, and makes available to all members of the society knowledge that may be used to improve the human condition . A knowledge society differs from an information society in that it transforms information into resources that allow society to take effective action, rather than only creating and disseminating raw data . Social norms are shared standards of acceptable behavior by groups. Social norms, which can both be informal understandings that govern

7772-473: The available food, improving aesthetics , increasing knowledge or enhancing the exchange of resources. Humans are one of the most adaptable species, despite having a low or narrow tolerance for many of the earth's extreme environments. Currently the species is present in all eight biogeographical realms , although their presence in the Antarctic realm is very limited to research stations and annually there

7888-453: The behavior of members of a society, as well as be codified into rules and laws, are powerful drivers of human behavior. Social roles are norms, duties , and patterns of behavior that relate to an individual's social status. In functionalist thought, individuals form the structure of society by occupying social roles. According to symbolic interactionism, individuals use symbols to navigate and communicate roles. Erving Goffman used

8004-561: The best long-distance runners in the animal kingdom, but slower over short distances. Humans' thinner body hair and more productive sweat glands help avoid heat exhaustion while running for long distances. Compared to other apes, the human heart produces greater stroke volume and cardiac output and the aorta is proportionately larger. Like most animals, humans are a diploid and eukaryotic species. Each somatic cell has two sets of 23 chromosomes , each set received from one parent; gametes have only one set of chromosomes, which

8120-640: The collapse of most global empires, leading to widespread decolonization. Following the conclusion of the Second World War in 1945, the United States and the USSR emerged as the remaining global superpowers . This led to a Cold War that saw a struggle for global influence, including a nuclear arms race and a space race , ending in the collapse of the Soviet Union. The current Information Age , spurred by

8236-771: The combined eastern and western Roman Empire in the 4th century AD. Bubonic plagues , first recorded in the 6th century AD, reduced the population by 50%, with the Black Death killing 75–200 million people in Eurasia and North Africa alone. Human population is believed to have reached one billion in 1800. It has since then increased exponentially, reaching two billion in 1930 and three billion in 1960, four in 1975, five in 1987 and six billion in 1999. It passed seven billion in 2011 and passed eight billion in November 2022. It took over two million years of human prehistory and history for

8352-410: The concept of information society has been discussed since the 1930s, in the present day, it is almost always applied to ways that information technologies impact society and culture. It therefore covers the effects of computers and telecommunications on the home, the workplace, schools, government, and various communities and organizations, as well as the emergence of new social forms in cyberspace. As

8468-474: The continent, gradually replacing or interbreeding with local populations of archaic humans. Humans began exhibiting behavioral modernity about 160,000–70,000 years ago, and possibly earlier. This development was likely selected amidst natural climate change in Middle to Late Pleistocene Africa. The "out of Africa" migration took place in at least two waves, the first around 130,000 to 100,000 years ago,

8584-586: The daily collection of wild plants and the hunting of wild animals. Hunter-gatherers move around constantly in search of food. As a result, they do not build permanent villages or create a wide variety of artifacts . The need for mobility also limits the size of these societies, and they usually only form small groups such as bands and tribes , usually with fewer than 50 people per community. Bands and tribes are relatively egalitarian , and decisions are reached through consensus . There are no formal political offices containing real power in band societies, rather

8700-423: The desire to understand and influence phenomena having motivated humanity's development of science , technology , philosophy , mythology , religion , and other frameworks of knowledge ; humans also study themselves through such domains as anthropology , social science , history , psychology , and medicine . There are estimated to be more than eight billion living humans . Although some scientists equate

8816-511: The development of the Internet and Artificial Intelligence systems, sees the world becoming increasingly globalized and interconnected. Early human settlements were dependent on proximity to water and – depending on the lifestyle – other natural resources used for subsistence , such as populations of animal prey for hunting and arable land for growing crops and grazing livestock. Modern humans, however, have

8932-623: The early 20th century, there has been continuous human presence in Antarctica through research stations and, since 2000, in space through habitation on the International Space Station . All modern humans are classified into the species Homo sapiens , coined by Carl Linnaeus in his 1735 work Systema Naturae . The generic name " Homo " is a learned 18th-century derivation from Latin homō , which refers to humans of either sex. The word human can refer to all members of

9048-668: The emergence of early civilizations . An urban revolution took place in the 4th millennium BCE with the development of city-states , particularly Sumerian cities located in Mesopotamia . It was in these cities that the earliest known form of writing, cuneiform script , appeared around 3000 BCE. Other major civilizations to develop around this time were Ancient Egypt and the Indus Valley Civilisation . They eventually traded with each other and invented technology such as wheels, plows and sails. Emerging by 3000 BCE,

9164-572: The functionalist school of thought, individuals in society work together like organs in the body to create emergent behavior, sometimes referred to as collective consciousness . 19th century sociologists Auguste Comte and Émile Durkheim , for example, believed that society constitutes a separate "level" of reality, distinct from both biological and inorganic matter. Explanations of social phenomena had therefore to be constructed within this level, individuals being merely transient occupants of comparatively stable social roles. Conflict theorists take

9280-473: The further development of governance within and between communities. As of 2022 , according to The Economist , 43% of national governments were democracies , 35% autocracies , and 22% containing elements of both. Many countries have formed international political organizations and alliances, the largest being the United Nations with 193 member states. Trade, the voluntary exchange of goods and services, has long been an aspect of human societies, and it

9396-430: The general well-being of humans in hunter gatherer societies challenges the purported relationship between technological advancement and human progress . Rather than searching for food on a daily basis, members of a pastoral society rely on domesticated herd animals to meet their food needs. Pastoralists typically live a nomadic life, moving their herds from one pasture to another. Community size in pastoral societies

9512-561: The genomes of 1,184 individuals from 11 populations and identified 1.6 million single nucleotide polymorphisms . African populations harbor the highest number of private genetic variants. While many of the common variants found in populations outside of Africa are also found on the African continent, there are still large numbers that are private to these regions, especially Oceania and the Americas . By 2010 estimates, humans have approximately 22,000 genes. By comparing mitochondrial DNA , which

9628-494: The gestures, and voices from their human trainers. Apparently, human voice control in non-human great apes could derive from an evolutionary ancestor with similar voice control capacities. These include chimpanzees and orangutans. Some of the species of toothed whales like dolphins and porpoises such as beluga whales and orca can imitate the patterns of human speech. There are many examples throughout history in fiction. be it in written form or in film and animation. In

9744-580: The global average life expectancy at birth of a girl is estimated to be 74.9 years compared to 70.4 for a boy. There are significant geographical variations in human life expectancy, mostly correlated with economic development – for example, life expectancy at birth in Hong Kong is 87.6 years for girls and 81.8 for boys, while in the Central African Republic , it is 55.0 years for girls and 50.6 for boys. The developed world

9860-443: The human lifestyle. Genes and the environment influence human biological variation in visible characteristics, physiology , disease susceptibility, mental abilities, body size, and life span. Though humans vary in many traits, humans are among the least genetically diverse species. Any two humans are at least 99.5% genetically similar. Humans are sexually dimorphic : generally, males have greater body strength and females have

9976-550: The human population to reach one billion and only 207 years more to grow to 7 billion. The combined biomass of the carbon of all the humans on Earth in 2018 was estimated at 60 million tons, about 10 times larger than that of all non-domesticated mammals. In 2018, 4.2 billion humans (55%) lived in urban areas, up from 751 million in 1950. The most urbanized regions are Northern America (82%), Latin America (81%), Europe (74%) and Oceania (68%), with Africa and Asia having nearly 90% of

10092-505: The human population was reduced to a small number of breeding pairs. The forces of natural selection have continued to operate on human populations, with evidence that certain regions of the genome display directional selection in the past 15,000 years. The human genome was first sequenced in 2001 and by 2020 hundreds of thousands of genomes had been sequenced. In 2012 the International HapMap Project had compared

10208-694: The implications of modernity , and that their analysis of non-Western cultures is therefore limited in scope. As examples of nonwestern thinkers who took a systematic approach to understanding society, al-Attas mentions Ibn Khaldun (1332–1406) and José Rizal (1861–1896). Khaldun, an Arab living in the 14th century, understood society, along with the rest of the universe, as having "meaningful configuration", with its perceived randomness attributable to hidden causes. Khaldun conceptualized social structures as having two fundamental forms: nomadic and sedentary. Nomadic life has high social cohesion ( asabijja ), which Khaldun argued arose from kinship, shared customs, and

10324-502: The jungle or forest, provide the main source of food in a horticultural society. These societies have a similar level of technology and complexity to pastoral societies. Along with pastoral societies, horticultural societies emerged about 10,000 years ago, after technological changes of the Agricultural Revolution made it possible to cultivate crops and raise animals. Horticulturists use human labor and simple tools to cultivate

10440-450: The land for one or more seasons. When the land becomes barren, horticulturists clear a new plot and leave the old plot to revert to its natural state. They may return to the original land several years later and begin the process again. By rotating their garden plots, horticulturists can stay in one area for a long period of time. This allows them to build permanent or semi-permanent villages. As with pastoral societies, surplus food leads to

10556-442: The last surviving species of the genus Homo . They are great apes characterized by their hairlessness , bipedalism , and high intelligence . Humans have large brains , enabling more advanced cognitive skills that enable them to thrive and adapt in varied environments, develop highly complex tools , and form complex social structures and civilizations . Humans are highly social , with individual humans tending to belong to

10672-567: The late Miocene epoch. During this split, chromosome 2 was formed from the joining of two other chromosomes, leaving humans with only 23 pairs of chromosomes, compared to 24 for the other apes. Following their split with chimpanzees and bonobos, the hominins diversified into many species and at least two distinct genera. All but one of these lineages – representing the genus Homo and its sole extant species Homo sapiens  – are now extinct. The genus Homo evolved from Australopithecus . Though fossils from

10788-520: The latter half of the 20th century, theorists began to view society as socially constructed . In this vein, sociologist Peter L. Berger describes society as "dialectic": Society is created by humans, but this creation turns in turn creates or molds humans. The sociologic emphasis placed on functionalism, conflict theory, and symbolic interactionism, has been criticized as Eurocentric . The Malaysian sociologist Syed Farid al-Attas , for example, argues that Western thinkers are particularly interested in

10904-430: The metaphor of a theater to develop the dramaturgical lens , which argues that roles provide scripts that govern social interactions. The division of humans into male and female gender roles has been marked culturally by a corresponding division of norms, practices , dress , behavior , rights, duties, privileges , status , and power . Some argue that gender roles arise naturally from sex differences , which lead to

11020-446: The now-extinct Neanderthals . Early trade involved materials for creating tools, like obsidian , exchanged over short distances. In contrast, throughout antiquity and the medieval period, some of the most influential long-distance routes carried food and luxury goods, such as the spice trade . Early human economies were more likely to be based around gift giving than a bartering system. Early money consisted of commodities ;

11136-414: The oldest being in the form of cattle and the most widely used being cowrie shells . Money has since evolved into governmental issued coins , paper and electronic money . Human study of economics is a social science that looks at how societies distribute scarce resources among different people. There are massive inequalities in the division of wealth among humans; as of 2018 in China, Europe, and

11252-555: The ongoing mass extinction of other forms of life. Within the last century, humans have explored challenging environments such as Antarctica , the deep sea , and outer space . Human habitation within these hostile environments is restrictive and expensive, typically limited in duration, and restricted to scientific , military , or industrial expeditions. Humans have visited the Moon and made their presence known on other celestial bodies through human-made robotic spacecraft . Since

11368-442: The only primates to have short, relatively flush canine teeth . Humans have characteristically crowded teeth, with gaps from lost teeth usually closing up quickly in young individuals. Humans are gradually losing their third molars , with some individuals having them congenitally absent. Humans share with chimpanzees a vestigial tail, appendix , flexible shoulder joints, grasping fingers and opposable thumbs . Humans also have

11484-514: The opposite view, and posit that individuals and social groups or social classes within society interact on the basis of conflict rather than agreement. One prominent conflict theorist is Karl Marx who conceived of society as operating on an economic "base" with a "superstructure" of government, family, religion and culture. Marx argues that the economic base determines the superstructure, and that throughout history, societal change has been driven by conflict between laborers and those who own

11600-474: The palm of the hand and on the soles of the feet. It is estimated that the worldwide average height for an adult human male is about 171 cm (5 ft 7 in), while the worldwide average height for adult human females is about 159 cm (5 ft 3 in). Shrinkage of stature may begin in middle age in some individuals but tends to be typical in the extremely aged . Throughout history, human populations have universally become taller, probably as

11716-731: The parental role of males, the use of language to communicate, the specialization of labor, and the tendency to build "nests" (multigenerational camps, town, or cities). Some biologists, including entomologist E.O. Wilson , categorize humans as eusocial , placing humans with ants in the highest level of sociability on the spectrum of animal ethology , although others disagree. Social group living may have evolved in humans due to group selection in physical environments that made survival difficult. In Western sociology, there are three dominant paradigms for understanding society: functionalism (also known as structural functionalism), conflict theory , and symbolic interactionism . According to

11832-499: The people that they govern. There have been many forms of government throughout human history, with various ways of allocating power, and with different levels and means of control over the population. In early history, distribution of political power was determined by the availability of fresh water , fertile soil , and temperate climate of different locations. As farming populations gathered in larger and denser communities, interactions between different groups increased, leading to

11948-511: The population density varies from one region to another, and large stretches of surface are almost completely uninhabited, like Antarctica and vast swathes of the ocean. Most humans (61%) live in Asia; the remainder live in the Americas (14%), Africa (14%), Europe (11%), and Oceania (0.5%). Estimates of the population at the time agriculture emerged in around 10,000 BC have ranged between 1 million and 15 million. Around 50–60 million people lived in

12064-645: The pre-colonial era, when the Filipinos controlled trade routes and had higher economic activity, to the period of colonial rule, and argued that exploitation, economic disorder, and colonial policies that discouraged farming led to a decreased interest in work. Sociologists tend to classify societies based on their level of technology, and place societies in three broad categories: pre-industrial , industrial , and postindustrial . Subdivisions of these categories vary, and classifications are often based on level of technology, communication, and economy. One example of such

12180-484: The production of food. Agrarian societies are especially noted for their extremes of social classes and rigid social mobility. As land is the major source of wealth, social hierarchy develops based on landownership and not labor. The system of stratification is characterized by three coinciding contrasts: governing class versus the masses , urban minority versus peasant majority, and literate minority versus illiterate majority. This results in two distinct subcultures;

12296-613: The production of goods. Advanced industrial societies see a shift toward an increase in service sectors, over manufacturing. Service industries include education, health and finance. An information society is a society where the usage, creation , distribution , manipulation and integration of information is a significant activity. Proponents of the idea that modern-day global society is an information society posit that information technologies are impacting most important forms of social organization, including education, economy, health, government, warfare , and levels of democracy. Although

12412-404: The second ( Southern Dispersal ) around 70,000 to 50,000 years ago. H. sapiens proceeded to colonize all the continents and larger islands, arriving in Eurasia 125,000 years ago, Australia around 65,000 years ago, the Americas around 15,000 years ago, and remote islands such as Hawaii , Easter Island , Madagascar , and New Zealand in the years 300 to 1280 CE. Human evolution was not

12528-547: The sense of humanity). The native English term man can refer to the species generally (a synonym for humanity ) as well as to human males. It may also refer to individuals of either sex. Despite the fact that the word animal is colloquially used as an antonym for human , and contrary to a common biological misconception , humans are animals . The word person is often used interchangeably with human , but philosophical debate exists as to whether personhood applies to all humans or all sentient beings , and further if

12644-493: The steep and rigid stratification of agrarian societies. Industrial societies, which emerged in the 18th century in the Industrial Revolution , rely heavily on machines powered by external sources for the mass production of goods. Whereas in pre-industrial societies the majority of labor takes place in primary industries focused on extracting raw materials (farming, fishing, mining, etc.), in industrial societies, labor

12760-433: The term "humans" with all members of the genus Homo , in common usage it generally refers to Homo sapiens , the only extant member. All other members of the genus Homo , which are now extinct, are known as archaic humans , and the term "modern human" is used to distinguish Homo sapiens from archaic humans. Anatomically modern humans emerged around 300,000 years ago in Africa, evolving from Homo heidelbergensis or

12876-427: The transition are scarce, the earliest members of Homo share several key traits with Australopithecus . The earliest record of Homo is the 2.8 million-year-old specimen LD 350-1 from Ethiopia , and the earliest named species are Homo habilis and Homo rudolfensis which evolved by 2.3 million years ago. H. erectus (the African variant is sometimes called H. ergaster ) evolved 2 million years ago and

12992-478: The urban elite versus the peasant masses. Moreover, this means cultural differences within agrarian societies are greater than differences between them. The landowning strata typically combine government, religious, and military institutions to justify and enforce their ownership, and support elaborate patterns of consumption, slavery , serfdom , or peonage is commonly the lot of the primary producer. Rulers of agrarian societies often do not manage their empire for

13108-434: The whole, industrial societies are marked by the increased power of human beings. Technological advancements mean that industrial societies have increased potential for deadly warfare. Governments use information technologies to exert greater control over the populace. Industrial societies also have an increased environmental impact. Post-industrial societies are societies dominated by information and services, rather than

13224-440: The world's 3.4 billion rural population. Problems for humans living in cities include various forms of pollution and crime , especially in inner city and suburban slums . Most aspects of human physiology are closely homologous to corresponding aspects of animal physiology. The dental formula of humans is: 2.1.2.3 2.1.2.3 . Humans have proportionately shorter palates and much smaller teeth than other primates. They are

13340-438: Was derived from the noun socius (" comrade , friend , ally"). Humans , along with their closest relatives bonobos and chimpanzees , are highly social animals. This biological context suggests that the underlying sociability required for the formation of societies is hardwired into human nature. Human society features high degrees of cooperation, and differs in important ways from groups of chimps and bonobos, including

13456-402: Was the first archaic human species to leave Africa and disperse across Eurasia. H. erectus also was the first to evolve a characteristically human body plan . Homo sapiens emerged in Africa around 300,000 years ago from a species commonly designated as either H. heidelbergensis or H. rhodesiensis , the descendants of H. erectus that remained in Africa. H. sapiens migrated out of

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