CAS AR 100 Lecture Notes - Lecture 2: Mousterian, Chemical Reaction, Lake Turkana
10 Sep 2017
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Order: primates because have grasping hands, flexible limbs, highly developed sense of vision, family: hominoidea, genus: homo, species: sapiens because shape of teeth, absence of tail, and swinging arms. Hominids include gorillas and chimpanzees and humans. Hominins describe those species clearly in the line of human evolution, those after the split from chimpanzees. Characteristics: bipedalism, absence of tail (in all hominids, using tools to make other tools, communication via languages and written languages, larger brains (in terms of % of body weight) bigger frontal lobe, culture. Variation within a particular species = genetic mutation, making not the same as parents. Natural selection = survival of the fittest, the stronger, more favorable in genetic variation, Inheritance = inheriting traits from parents are more likely to survive to reproduce. Evolution = process of change over time through variation, inheritance, and natural selection. Primates begin 65 mya in cenozoic as dwelling insect-eaters in tropical rain forest.
