Race, Evolution, and Behavior: A Life History PerspectiveRushton's thesis is that when fully modern humans migrated out of Africa, perhaps only 100,000 years ago, the colder Eurasian climate selected for larger brains, more forward planning, greater family stability, and increased longevity with concomitant reductions in sex hormone, speed of maturation, reproductive potency, and aggressiveness. Rushton's theory emphasizes a trade-off between parenting and mating and brings into focus the concept of a coordinated life history of characteristics, evolving together, to replicate genes more effectively. The selection for large brains and parenting skills was taken furthest in east Asia. Rushton's theory explains differentiation in intelligence and predicts other, seemingly unrelated race effects, such as differences in frequency of twinning. The capacity to unify disparate phenomena is usually considered a virtue in theories. |
Contents
Revamping Social Science | 1 |
Character Traits | 17 |
Behavioral Genetics | 43 |
Copyright | |
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Race, Evolution, and Behavior: A Life History Perspective J. Philippe Rushton No preview available - 1997 |
Common terms and phrases
adopted adults African aggregated aggression altruism American Amerindians Asians assortative mating average Behavior Genetics biological birth black-white differences Caucasian Caucasoids cited cm³ cognitive correlation cranial capacity crime cultural dizygotic E. O. Wilson effects environment environmental erectus estimates ethnic European evolution evolutionary example Eysenck factors female Figure Galton genes genetic influence genetic similarity groups heritability higher hominid Homo Homo erectus inbreeding depression increased individual infants intelligence intercourse Jensen K-selected K-strategists K-strategy less lower Lynn males mating maturation mean IQ mental ability Mongoloids monozygotic Neanderthals Negroids offspring organization Orientals parents pattern personality populations predicted primates Psychological race differences racial differences reported Reprinted with permission reproductive strategies Rushton sample scale Scarr scores selection siblings skull social class sociobiology species studies subtests suggested Table testosterone tests theory tion traits twin studies twins reared United variables variance Wilson women