PHYS 037 Lecture Notes - Lecture 19: Thumb, Homo Rudolfensis, Homo Habilis
6 Dec 2016
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Sensitive pads on the undersides of ngers and toes. Many also have an opposable thumb: evolved to make things easier to grasp and for adaptation of life on trees, grasping hands, a attened face, stereoscopic vision. Allows primates to make accurate judgements about distance and position of. Larger brain can process more sensory input. Lengthened gestation time allowing for forebrain development. Juvenile period of development is extended, with emphasis on learned behavior and complex social interactions. Closely related to or had common ancestor with gorilla during miocene. Common ancestor rst evolved at the beginning of the miocene 23 mya. Include hominoids, old world monkeys, new world monkeys. Fossils for monkeys were found about 45 mya: arthropods, closely related. Dna base sequence between humans and chimps differs by only 1. 5% Must have an anatomy suitable for standing erect and walking on two feet: bipedalism, hominins period, hominids, hominoids https://emailucr-my. sharepoint. com/personal/nyree_catlin_email_ucr_edu/_layouts/15/wopiframe. aspx?sourcedoc=%7bc82d6fc0-8c22-4d0b-9da7-2a2b2b3a1 1/3.
