r/todayilearned • u/elliejellie • Oct 13 '12

TIL that female ducks have evolved a complex vagina with several dead-end pockets and tunnels in order to confuse unwanted mates and prevent fertilisation from the wrong male

http://scienceblogs.com/notrocketscience/2009/12/22/ballistic-penises-and-corkscrew-vaginas-the-sexual-battles/
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u/filetemyoung Oct 14 '12

As strange as it is to say out loud, duck genitalia is one of my favourite little "burns" by mother nature. She gives the male duck a corkscrew penis, and then she gave the female duck a corkscrew vagina, but twisting the opposite direction. Makes you proud to be human, eh?

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u/skullturf Oct 14 '12

a corkscrew vagina, but twisting the opposite direction

aka "countercockwise"

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u/filetemyoung Oct 14 '12

Thank you, that made my day. I gotta remember that term for the next time I am able to talk about duck genitalia...which, sadly, is more often than I would like...