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Science as tourist studies among the hunter-gatherers

From report on a study of the rules developed by East African hunter-gatherers (the Hadza) around sharing food: Some camps share food more than others, but Hadza circulate among all camps rather than clustering in the most cooperative ones. Hadza individuals adjust their willingness to share food to the accepted standards, or social norms, of whatever temporary camp they live in, researchers report online September 20 in Current Biology. Social norms develop in poorly understood ways. But factors such as the presence of prolific hunters probably encourage sharing in Hadza camps, says a team led by psychologists Coren Apicella and Kristopher Smith of the University of Pennsylvania. In groups with such norms, cooperators interact only with cooperators and don’t get Read More ›