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Posts Tagged "Cooperation & Altruism"

Anthropology in Practice

Cooperation Is Child’s Play

Cooperation confounds us: Humans are the only members of the animal kingdom to display this tendency to the extent that we do, and it’s an expensive endeavor with no guarantee of reciprocal rewards. While we continue to look for answers about how and why cooperation may have emerged in human social and cultural evolution, we [...]

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Not bad science

Who’s the daddy? Why do tamarins raise offspring that aren’t theirs?

When it comes to mating, males rarely cooperate. In most species males compete for females, through roaring, head-banging, or even eye-length comparison. However, this is not the case for Geoffroy’s tamarin. In these tamarins, the females mate with all the males in her group that are not related to her. This is called polyandry (the [...]

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