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Unformatted text preview: o FOXP2 gene identical in Neandertals and modern humans Neandertals could almost certainly speak like we do Why Evolve Language? • Advantageous adaptation o Allowed Homo genus to expand out of Africa o Allowed Homo genus to succeed in cold and poor environments Key knowledge passed around o Honestly, no idea why language evolved Diversity • 2 sources of human variation: o Environmental Climate and habitat o Genetic Genes inherited from parents o Example: body weight Environment = readily available food, cultural standards of beauty Genetic = genes can predispose someone to be heavier • Variation within a group (intra-pop.) o Example: height of NBA players • Variation among groups (inter-pop.) o Example: height of NBA players and jockeys...
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- Spring '07