4 - Social behavior and life histories o Learning...

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ANTHR NOTES 11/4 17:04 Who were the first hominids? Not really sure but they were bipedal Multiple species  Contemporaneous sympatric in east and south Africa First hominids Large and small body and brain hominids alive at same time east and south  Africa Homo—1 st  out of Africa Transition H. sapiens –origin of modern human variation Hominid diversity Bipedality Diet Increase in relative brain size o Brain size and ecology Higher quality diets    higher metabolic requirement Advanced cognitive skills in nonhuman primates often (not always)  associated with obtaining food. o Brain size and sociality Complex social relationships    slow development provides time for  social learning Individual recognition permits long-term social bonds
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Unformatted text preview: Social behavior and life histories o Learning thresholds Weaning : self feeding Puberty : sex Human primates have the longest juvenile period Culture o Non-genetic transmission of practices that produce local, population-specific behavioral traditions and norms o Interpretations of behavioral changes Adaptive responses to local conditions Local traditions Evolutionary trap Vertical niche expansion due to population size and density Rest social and sexual activities Exposure to terrestrial predators, pathogens, and human activites Not mutually exclusive Consistent with dynamic response model 17:04 17:04...
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4 - Social behavior and life histories o Learning...

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