Male ducks have some of the weirdest junk in nature—a ludicrously long, corkscrew-shaped member that evolved on account of an ongoing battle of the sexes. New research shows that the social ...
The first intimate duck videos show that it’s mate and checkmate in the battle of the sexes. High-speed cameras document that a male Muscovy duck can fully extend his 20-centimeter penis in a third of ...
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