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PRIMATES and DIVERSITY 1) Why study Primates? a. Its interesting in its own right b. Help understand the dynamics of human past – shared but divergent evolutionary history i. Learn about human macroevolution and our closest living relatives c. Primate conservation i. 250-350 species of primates currently exist ii. Need to know their behavior in order to conserve 2) Taxonomy a. Based on inclusive hierarchy b. Things grouped together based on morphological traits c. Today can use DNA hybridization d. Based on evolutionary relationship e. 8 levels: Species -> Genus -> Family -> Order -> Class -> Phylum -> Kingdom -> Domain -> Life 3) History of Life on Earth a. 4 Billion years ago: first evidence of lfe b. 430-400 m BC: first fishes and land plants c. 400-350 m BC: First amphibians and trees d. 340-280 m BC: First reptiles and insects e. 180-135 m BC: dinosaurs dominate, first bird like reptiles, first mammals (Jurassic) f. 135-65 m BC: Extinction of dinosaurs, first birds, placental mammals, flowering plants spreading g. 65 m BC: Beginning of mammalian adaptive radiation i. First primates h. 65 m BC: Present: Adaptive radiation of primates i. 24-5 m BC: Clear divergence of monkeys and apes
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j. 6 m BC: Divergence of hominids from apes 4) Reptiles to Mammals a. Changes in skull, jaw teeth and limbs
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