ANTH 1301 Lecture 15: Lecture 15
19 Oct 2015
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Document Summary
Y-5 molar pattern vs. bilophodont primate evolutionary trends calvarium mandible (lower jaw) cranium : mandible postcranium: below the cranium axial skeleton appendicular skeleton. Howler monkeys vertical clinging and leaping : ex: galago. seen in tarsiers and leamers. * tarsiers and tree frogs share anatomical features because they are both adapted to clinging to vertical trunks, an example of evolutionary convergence brachiation (suspensory climbing): ex: gibbion. *suspensory behavior is seen in new world monkeys that have a tail that functions as a fifth limb knuckle-walking: found in chimps and gorillas. bipedalism: walk on two legs. Leaf eaters- sharp and most prominante teath. Theories of primate origins: arboreal hypothesis g. elliot smith. Depth perception and binocular vision crucial: climbing using prehensile hands and feet instead of claws, varied diet led to omnivorous adaptation and generalized dentition, visual predation hypothesis matt cartmill. Binocular and stereoscopic vision so they could accurately judge how far away an insect was without moving their head.
