Changes

==Chimpanzee differences==

==Chimpanzee differences==

Anatomical differences between Common and Pygmy Chimpanzees are slight, but in [[sex|sexual]] and social behaviour there are marked differences. Common Chimpanzees have an [[omnivore|omnivorous]] [[diet (nutrition)|diet]], a troop [[predation|hunting]] culture based on beta males led by an [[alpha male]], and highly complex social relationships; Bonobos, on the other hand, have a mostly [[herbivorous]] diet and an [[egalitarian]], [[matriarchal]], sexually receptive behavior. The exposed skin of the face, hands and feet varies from pink to very dark in both species, but is generally lighter in younger individuals, darkening as maturity is reached. Bonobos have longer arms and tend to walk upright more often than the Common Chimpanzee.{{fact}}

Anatomical differences between Common and Pygmy Chimpanzees are slight, but in [[sex|sexual]] and social behavior there are marked differences. Common Chimpanzees have an [[omnivore|omnivorous]] [[diet (nutrition)|diet]], a troop [[predation|hunting]] culture based on beta males led by an [[alpha male]], and highly complex social relationships; Bonobos, on the other hand, have a mostly [[herbivorous]] diet and an [[egalitarian]], [[matriarchal]], sexually receptive behavior. The exposed skin of the face, hands and feet varies from pink to very dark in both species, but is generally lighter in younger individuals, darkening as maturity is reached. Bonobos have longer arms and tend to walk upright more often than the Common Chimpanzee.{{fact}}

==Taxonomic relationships==

==Taxonomic relationships==

Many [[Human evolution|human fossils]] have been found, but chimpanzee fossils were not described until 2005 AD. Existing chimpanzee populations in West and Central Africa do not overlap with the major human fossil sites in East Africa. However, chimpanzee fossils have now been reported from [[Kenya]]. This would indicate that both humans and members of the ''Pan'' [[clade]] were present in the East African [[Rift Valley]] during the Middle [[Pleistocene]].<ref name=firstfossil>{{cite journal | title = First fossil chimpanzee | last = McBrearty | first = S. | coauthors = N. G. Jablonski | journal = [[Nature (journal)|Nature]] | date = 2005-09-01 | volume = 437 | pages = 105-108 | id = {{Entrez Pubmed|16136135}}}}</ref>

Many [[Human evolution|human fossils]] have been found, but chimpanzee fossils were not described until 2005 AD. Existing chimpanzee populations in West and Central Africa do not overlap with the major human fossil sites in East Africa. However, chimpanzee fossils have now been reported from [[Kenya]]. This would indicate that both humans and members of the ''Pan'' [[clade]] were present in the East African [[Rift Valley]] during the Middle [[Pleistocene]].<ref name=firstfossil>{{cite journal | title = First fossil chimpanzee | last = McBrearty | first = S. | coauthors = N. G. Jablonski | journal = [[Nature (journal)|Nature]] | date = 2005-09-01 | volume = 437 | pages = 105-108 | id = {{Entrez Pubmed|16136135}}}}</ref>

[[:Category:Mammals]]

[[Category:Mammals]]