Anth. 101 Notes 3

Anth 101 Notes 3 - 9 Nov Nova documentary Becoming Human Part 1 online When does the molecular clock indicate the chimp and human lines diverged o

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9 Nov Nova documentary “Becoming Human: Part 1” online When does the molecular clock indicate the chimp and human lines diverged? o 6 million years ago How do multiple forms of various hominids fit into the evolution of Homo sapiens ? o Each hominid took one more evolutionary step forward Tumai (6 MYA) = Bipedal Habilis (2.5-1.5 MYA) = Tool maker 11-13 Nov “Beak of the Finch” discussions Ppt 12B, 12C, and book There are so few transitional fossils because o Standing back in time like this smoothes all the curves, removes most of the detail from the picture. The closer you look the more action you see. o Speciation is much faster than the fossil-bearing epochs can show and fossilization is relatively rare in most settings. o The “snapshots” are too few and too far apart in time to give the detailed picture required to see a steady progression. Competition is for niches – for resources. Many species shape their niches – make them better for their
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This note was uploaded on 05/20/2011 for the course ANTH 101 taught by Professor Scarre during the Fall '07 term at UNC.

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Anth 101 Notes 3 - 9 Nov Nova documentary Becoming Human Part 1 online When does the molecular clock indicate the chimp and human lines diverged o

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