EvolutionLectNotes

EvolutionLectNotes - Evolution and Behavior Sir Charles...

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Evolution and Behavior Sir Charles Darwin 1809-1882 Darwin’s Main Contributions to Psychology Continuity of life forms Mental evolution-brain designed to solve life problems Sexology-should be studied as a science Voyage Aboard H. M. S. Beagle 1831-1836 Thomas Malthus 1766-1834 Malthus’s Theory of Population Charles Lyell 1797-1875 -”Principles of Geology” plate tectonics. no such thing as fixed continents. Premises of Natural Selection Because resources are limited, organisms must necessarily battle for survival. Those organisms that possess favorable characteristics in that environment will re- produce more; i.e., they are “fitter.” Because of this differential reproduction, characteristics that are favorable in that environment will proliferate, whereas those that are unfavorable will decrease. Reliable trends in natural selection constitute evolution by natural selection. Natural Selection- differential reproductive success of individuals within a population be-
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