ANTHROP 1AA3 Lecture Notes - Lecture 7: Paranthropus Boisei, Olduvai Gorge, Olorgesailie
23 Apr 2017
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Document Summary
There are approximately 190 species of non-human primates. Primates cant be easily de ned by a few traits. Ve digits n hands and feet, but some show diminished thumb and second nger. Partially opposable thumb and most have fully divergent, partly opposable big toe. Nail instead of claws (except some new world monkeys) Tactile pads with nerves at ends of ngers to enhancee touch sense. Colour vision all diurnal have it, nocturnal do not. Depth perception stereoscopic vision allows to see in 3 dimensions. Binocular vision both eyes set toward front of head. Decreased reliance on sense of smell (olfaction) reduction in sensory areas of brain and in snout. Expansion and increasing complexity of brain- visual areas and areas having to do with hands. More ef cient fetal nourishment, longer periods of gestation, smaller numbers of offspring, delayed maturation, extension of whole life span. Greater dependence on exible, learned behaviour greater parental in offspring.
