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Why is the human penis shaped the way it is?

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But in the case of the human penis, all signs point to a genuine adaptive reason that it has come to look the way it does. read more

, the research psychologist and award-winning columnist Jesse Bering features more than thirty of his most popular essays from Scientific American and Slate, as well as two new pieces, that take readers on a bold and captivating journey through some of the most taboo issues related to evolution and human behavior. read more

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