Human Evolution - Primates evolved from a small tree...

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Primates evolved from a small tree dwelling mammal. Dental evidence from fossils suggests that Primates descended from insectivores in the late Cretaceous (65 mya) Oldest known primate- Purgatorius unio
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Limber shoulder joints Dexterous hands Sensitive fingers Many cases, claws replaced by flat nails Binocular vision Hand-eye coordination Parental care Mostly single births Nurture offspring
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Suborder Prosimii (prosimians) lemurs and tarsiers Suborder Anthropoidea (anthropoids) new world monkeys old world monkeys hominoids
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Tree Shrew
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Lemurs Suborder Prosimii
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New & Old World Monkeys
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Old World monkeys Africa & Asia Arboreal and ground dwelling No prehensile tail Nostrils open downward Diurnal Live in bands- very social New World monkeys South America Arboreal Prehensile tail Nostrils open to the side Diurnal Live in bands- very social
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Apes (Hominoids)
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Edward Tyson (1699) depiction of a chimp
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Bonobo Chimpanzees
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Dryopithecus 23-14 mya
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Brain Cavity Size Brain Cavity Size
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Human Evolution - Primates evolved from a small tree...

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