Primates - 4/3/2008 9:09:00 AM Plesiadaformes Unique...

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03/04/2008 08:09:00 Plesiadaformes Unique feature of primates is the post-orbital bar which separates the jaw and  the eye Primates have an opposable thumb and big toe Tarsiers are unusual in primates because of its elongate leg bones (only  shared with humans) and its elongated ankle bones (shared with frogs, for  jumping) Primates have larger cerebral cortexes and cerebellums not because we are  more intelligent but because we need to be able to coordinate our highly  evolved visual sensory New World Monkeys First primates and mammals to develop tricolor vision Long tails that are prehensile and they use them as an extra limb The portion of the skull given over to the brain is dramatically increased  (because of increased thinking and coordination) Old World Monkeys Tailed but no longer prehensile
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This note was uploaded on 04/26/2008 for the course BIOL 305 taught by Professor Green during the Spring '08 term at McGill.

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Primates - 4/3/2008 9:09:00 AM Plesiadaformes Unique...

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