psy2_lec3_evo - Evolution and genetics in the study of...

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Evolution and genetics in the study of human behavior
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Human universals? s Beautiful faces s The “universal human” b Language, communication b Etiquette rules b Tool use (cutting, pounding) b Taboos b Music b Beliefs about death
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Evolution 101 s Evolution = Descent with modification b Genetic variation b Differential reproduction s Evolution is not a ladder b Niches s Same principle for b Morphology b Behavior (A phylogenetic tree)
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Evolution 101 s The peppered moth and industrial pollution Generation Three Four Two One
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Evolution 101 s Natural selection b Pepper moths, giraffes, cheetahs… s Social selection b Sexual selection s Peacocks; kindness? b Kin selection s Bird helpers-at-nest; altruism? s “Inclusive fitness” b Reciprocal altruism s Chimpanzees; friendship?
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Evolution 101 s Phylogeny b Change in gene frequency across generations, in a population b “Ultimate” causation s Ontogeny b Development of a phenotype in an individual b Gene x environment interactions b “Proximate” causation
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Evolution 101 Genotype Environment Phenotype (your traits) Continues throughout development
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psy2_lec3_evo - Evolution and genetics in the study of...

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