Unless you're a biologist or a bit of a freak you probably don't spare much thought to how animal genitalia has evolved over the centuries, but it turns out the private parts of animals are pretty interesting.
And as you can see in this animated short featuring a TED talk on the evolution of animal genitalia given by Dutch biologist/research scientist Menno Schilthuizen "genitals are the fastest-evolving organs in the animal kingdom" and they're all super duper strange.
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