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Science and the Proceedings of the National Academy of Sciences

Only a few species of mammals are monogamous, and now two scientific teams think they've figured out why they got that way. But their answers aren't exactly romantic. (Photo by Jeff J Mitchell/Getty Images)

Study: Monogamy Evolved As Way For Male Mammals To Protect Young

Only a few species of mammals are monogamous, and now two scientific teams think they’ve figured out why they got that way. But their answers aren’t exactly romantic.

07/29/2013

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