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Line 25: }} '''Humans''', known [[taxonomy|taxonomically]] as '''''Homo sapiens''''' ([[Latin]]: "wise man" or "knowing man"),<ref>{{cite journal |author=Goodman M, Tagle D, Fitch D, Bailey W, Czelusniak J, Koop B, Benson P, Slightom J |title=Primate evolution at the DNA level and a classification of hominoids |journal=J Mol Evol |volume = 30 |issue=3 |pages=260–266 |year=1990 |pmid=2109087 |doi=10.1007/BF02099995}}</ref><ref>{{cite web |title=Hominidae Classification |work=Animal Diversity Web @ UMich |url=http://animaldiversity.ummz.umich.edu/site/accounts/classification/Hominidae.html |accessdate=2006-09-25}}</ref> are the only [[Extant taxon| Humans have a [[encephalization|highly developed]] [[human brain|brain]], capable of abstract [[reasoning]], [[language]], [[introspection]], and [[problem solving]]. This mental capability, combined with an erect body carriage that frees the hands for manipulating objects, has allowed humans to make far greater use of [[tool]]s than any other species on Earth. [[Mitochondrial DNA]] and fossil evidence indicates that [[anatomically modern humans|modern humans]] [[Recent African origin of modern humans|originated in Africa]] about 200,000 years ago.<ref>[http://www.mnh.si.edu/anthro/humanorigins/ha/sap.htm The Smithsonian Institution, Human Origins Program]</ref> With individuals widespread in every continent except [[Antarctica]], humans are a [[cosmopolitan distribution|cosmopolitan]] species. {{asof|2010|8}}, the [[world population|population]] of humans was estimated to be about 6.8 billion.<ref name="popclock">{{cite web
Like most [[simian|higher primates]], humans are [[social animal]]s. However, humans are uniquely adept at utilizing systems of communication for self-expression, the exchange of ideas, and organization. Humans create complex [[social structure]]s composed of many cooperating and competing groups, from [[family|families]] to [[nation]]s. [[Social interaction]]s between humans have established an extremely wide variety of values, [[norm (sociology)|social norms]], and rituals, which together form the basis of human society. With individuals widespread in every continent except [[Antarctica]], humans are a [[cosmopolitan distribution|cosmopolitan]] species. {{asof|2010|8}}, the [[world population|population]] of humans was estimated to be about 6.8 billion.<ref name="popclock">{{cite web▼ |url=http://www.census.gov/ipc/www/popclockworld.html |title=World POPClock Projection Line 36 ⟶ 33: |publisher=U.S. Census Bureau, Population Division/International Programs Center}}</ref> ▲Like most [[simian|higher primates]], humans are [[social animal]]s. However, humans are uniquely adept at utilizing systems of communication for self-expression, the exchange of ideas, and organization. Humans create complex [[social structure]]s composed of many cooperating and competing groups, from [[family|families]] to [[nation]]s. [[Social interaction]]s between humans have established an extremely wide variety of values, [[norm (sociology)|social norms]], and rituals, which together form the basis of human society. Humans are noted for their desire to understand and influence their environment, seeking to explain and manipulate phenomena through science, philosophy, mythology and religion. This natural curiosity has led to the development of advanced tools and skills, which are passed down [[culture|culturally]]; humans are the only species known to build [[fire]]s, [[cooking|cook their food]], [[clothing|clothe]] themselves, and use numerous other [[technology|technologies]]. ▼ ▲Humans are noted for their desire to understand and influence their environment, seeking to explain and manipulate phenomena through science, philosophy, mythology and religion. This natural curiosity has led to the development of advanced tools and skills, which are passed down [[culture|culturally]]; humans are the only animal species known to build [[fire]]s, [[cooking|cook their food]], [[clothing|clothe]] themselves, and use numerous other [[technology|technologies]].
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