Lecture 20 Human evolutionbb

Lecture 20 Human evolutionbb - Human Evolution The story of...

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Human Evolution The story of how we got here . . .
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Darwin Studying Apes Descended from apes? My dear, let us hope that it is not true!
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Primates
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tarsier loris lemur Prosimians Southeast asia Madagascar
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New and Old World “Monkeys”
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Lesser Apes (Gibbons) Indonesia
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Great Apes Gorillas, Congo Orangutans, Borneo 275–500 cc 340–752 cc
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Great apes Chimps Bonobos 275–500 cc
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Using Tools & Language
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1 st major difference between chimps and human ancestors
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Evolution of bipedalism
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If Knuckle-walking only evolved once . . . a b c d
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But given that Chimps and Humans are closely related . . .
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7 million years ago split off
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Hybrids between chimp and early human ancestors?
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Oldest Hominid Fossil: “Toumai” Sahelanthropus tchadensis, 7 million years old, 340 cc
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Other Possible Ancestors Ardipithecus ramidus, 4.4 million years Orrorin tugenensis, 6 million years
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Australopithecus anamensis
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Lucy (3.2 mya) 1974, 40% Australopithicus afarensis 438 cc
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This note was uploaded on 10/22/2009 for the course BIO 124 taught by Professor Griscom during the Spring '07 term at James Madison University.

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Lecture 20 Human evolutionbb - Human Evolution The story of...

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