My own evolution wanderings have caused me to wonder for a long time about why the human penis is structured the way it is. Why would evolution make the penis have a head on it, with an obvious bulbous, almost ad-on bigger part? Why does it have that extra skin, the foreskin, added to the mix? And, for that matter, why is that skin cut off (I know about the religious part, I just mean how did it really start)? I won't be covering that one.
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