Cos 1 - Class 1 Tuesday 11:04 AM Histoy of Evolution...

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Class 1 Tuesday, January 08, 2008 11:04 AM Histoy of Evolution Thought What is Evolution? To change. Individuals don't evolve, populations or species do. In 1859 Darwin provided a mechanism 1. There are more individuals than can survive 2. There is a struggle for existence and because 3. Individuals vary in features that influence their survival and repro 4. There is evolution Darwin Not widely accepted for 80 yrs Go back to Plato, Aristotle, etc There were fossils, but misunderstood Griffin showed up in 630ish BC Where did it come from?
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Mongolia fossils (hypothesis) Plato had very little to say about giant bones, but they were thinking about species and origins They were Typological Thinkers (essentialists)-- everything arranged into classes and defined by its essence. Single class, and everything else is a variation of it. No continuity between the classes. Aristotle thought the world moved toward ever increasing perfection due to an intrinsic drive "finalism" or orthogenesis. Plants-->animals-->humans (order or creation (superior), but not continuous) Empedocles Believed in a process like natural selection Thought parts of animals would appear and sometimes they were join and create creatures. Like centaurs. Those that were fit survived and those that weren't, died.
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Lucretius (99-55 BC) Aurhotr of on the nature of things Survival of the fittest idea Christianity now Lowly forms to humans and notion of special creation God made stuff (before there wasn't one god) Evolution isn't allowed because God created them so they must be perfect Changing World Views: 5. Infinite duration with no beginning and no wend (Aristotle) 6. Constant unchanging world of short duration (Bible)
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