• surewhynotlem@lemmy.world
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        9 months ago

        Did you know: 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

        • Branch_Ranch@lemmy.world
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          9 months ago

          How does the male duck know which passage is the correct one? And can the female guide him or is it always rapey?

          • stoicmaverick@lemmy.world
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            9 months ago

            That’s the neat part, they don’t! They do however, have barbed penises which are designed to scrape out the semen of any other duck who happened to rape her before he got a chance to.