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lecture14.0211a - Becoming Human(1 Watersheds Questions...

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Becoming Human (1) Watersheds, Questions & Trends in Human Evolution
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Remember… Unity: the concept of a species (a population whose members can produce offspring who can themselves live and reproduce) Creating new kinds: speciation (groups sharing a common ancestor but who cannot interbreed to produce offspring who themselves can live & reproduce)
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Evolutionary Processes A. Generating variety: something new under the sun ( mutation ) B. Random processes: something old and lost ( genetic drift ) C.Keeping it all together: gene flow
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Big Watersheds 1. Origins of humankind : --> 5 -4.5 million yrs. ago, australopithecines --> about 2.5 million yrs. ago, Homo habilis 2. Origins of anatomically modern humans : --> Homo erectus : about 1.8 million yrs. ago 3. Development of food production systems : --> about 10,000 yrs. ago 4. Origins & characteristics of complex forms of social organization
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Big Questions 1. Anatomical & evolutionary : development of the species; implications of physical features for subsistence, social life, imagination 2. Subsistence : ways of biological survival pursued; movement to a species with apparent control over the environment 3. Social Complexity : numbers of people in face to face contact; questions of inequality and exploitation arising 4. Social Imagination, Cosmology, & Meaning : the possibility & content of belief and meaning
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-------------------------------------------------------------------------------------- CATEGORY OUR GROUP FRIENDS IN GROUP -------------------------------------------------------------------------------------- ORDER Primates
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