Animal Sex Is Dangerous and Horrifying. So Why Does Sex Exist at All? | WIRED

You?ve probably heard about duck penises?that they?re shaped like corkscrews, and that females have vaginas that corkscrew in the opposite direction. That one?s easy. But animal sex gets a whole lot weirder, with sexual dismemberment, servitude, and freaky parasitism that makes the duck?s corkscrew seem practically?um?straight? The current issue of our magazine is all about \[?\]
https://www.wired.com/2015/02/animal-sex/

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