2008 - Theories of Gender Identity Gender Difference...

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Evolutionary Theories Darwins Theory- traits of all living things vary traits are passed down to next generation Natural selection is filter for what is passed on adaptive traits promote survival @ reproduction are likely to be passed on Passive process Recent theories emphasize genetic survival children's adaptation to not liking green foods but green foods tend to be sweet which tend to be poisonous E.O. Wilsons Theory- Men and women subject to different evolutionary pressures Women and men differ in number of offspring they can produce Women and men differ in parental investment, or the cost of reproduction Over time, men and women have evolved traits that signal genetic fitness reproductive organ size- getting attention relative to other species, larger breasts. .. hair-long thick hair are perceived to be more genetically fit personality traits? Evolved Mating Strategies Women- be selective, choose best mate Prefer mates with resources, ability to provide for offspring, reduces promiscuity Men- mate early, mate often Competition for women promotes aggression, competition, and promiscuity The Sweaty T-shirt study Thornhill and Gangestad, 1999 Physical symmetry predicts genetic fitness- greater symmetry = greater success for mating Hypothesis- Men have evolved phermone that signals symmetry
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2008 - Theories of Gender Identity Gender Difference...

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