Secrets of the Phallus: Why Is the Penis Shaped Like That?

Posted on May 23, 2009 

Secrets of the Phallus: Why Is the Penis Shaped Like That?

If you’ve ever had a good, long look at the human phallus, whether yours or someone else’s, you’ve probably scratched your head over such a peculiarly shaped device. Let’s face it—it’s not the most intuitively shaped appendage in all of evolution. But according to evolutionary psychologist Gordon Gallup of the State University of New York at Albany, the human penis is actually an impressive “tool” in the truest sense of the word, one manufactured by nature over hundreds of thousands of years of human evolution. You may be surprised to discover just how highly specialized a tool it is. Furthermore, you’d be amazed at what its appearance can tell us about the nature of our sexuality.

The curious thing about the evolution of the human penis is that, for something that differs so obviously in shape and size from that of our closest living relatives, only in the past few years have researchers begun to study it in any detail. The reason for this neglect isn’t clear, though the most probable reason is because of its intrinsic snicker factor or, related to this, the likelihood of its stirring up uncomfortable puritanical sentiments. It takes a special type of psychological scientist to tell the little old lady sitting next to him on a flight to Denver that he studies how people use their penises when she asks what he does for a living. But I think labeling it as a “crude” or “disgusting” area of study reveals more about the critic than it does the researcher. And if you think there’s only one way to use your penis, that it’s merely an instrument of internal fertilization that doesn’t require further thought, or that size doesn’t matter, well, that just goes to show how much you can learn from Gallup’s research findings.

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