Muscovy ducks get super-fast erections and have twisty vaginas — for rape and counter-rape

Female Muscovy ducks have spirally, squiggly vaginas that keep out undesired penises. For desired penises, they simply relax their muscles to allow entry. They have evolved this capacity while male Muscovy ducks have evolved 8-inch penises that get fully-erect in a third of a second.

Friends, duck sex is a high-stakes world.

From Wired, via OMG Facts.

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One Comment

  1. Posted November 9, 2017 at 11:23 pm | Permalink

    I savor, cquse I found exactly what I was taking a look for.
    You’ve ended my 4 day long hunt! God Bless you man. Have a great
    day. Bye jonna.manninen@tuttu.fi

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