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The world according to Trivers

March 27, 2005

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Why do we take care of each other? Sometimes, Trivers argues, it's because we expect to be repaid later. Most of the time, though, we're just looking out for ourselves, or at least our genes. If evolution is a matter of so-called "selfish genes," then it makes sense to make sacrifices for our kin, who share a lot of the ... (Full article: 431 words)

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