Saturday, July 25, 2009

In most kinds of slug, the penis is about half the length of its body. ("Is that a Kalashnikov in your pocket or are you just glad to see me?") It's not clear why such anatomical grandeur might be important for survival: Slug experts discount the idea that the oversize penis functions like a peacock tail, as a display of virility—they point out that the chemical signaling and seduction occurs before the magisterial organs even come into view. In any event, the chosen mate isn't likely to be impressed, since most slugs possess both male and female sexual organs. During a single coupling, slugs can mate reciprocally—with each partner inseminating and being inseminated—or one can serve as the recipient.
(Slate)

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