Chimpanzee birth to be live-streamed

A primate sanctuary in South Africa on Tuesday announced it will live-stream the birth of a baby chimpanzee on the Internet, an online event it claims will be a world first.

Evolution: Social exclusion leads to cooperation

Social exclusion as a punishment strategy helps explain the evolution of cooperation, according to new research published today in the Proceedings of the Royal Society B.

Anthropologist studies reciprocity among chimpanzees and bonobos

When your neighbor asks to borrow a cup of sugar and you readily comply, is your positive response a function of the give and take that characterize your longstanding relationship? Or does it represent payment –– or prepayment ...

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