In college zoology classes I learned there are plenty of animal species that change sex. It’s called sequential hermaphroditism. Clown fish are all born male, but the most dominant one becomes a female. Wrasses work in reverse, with a female able to transform her ovaries into testes in about a week’s time. The slipper limpet, when touched by other male limpets, can become female. Male bearded dragons can change sex while still in their eggs, if exposed to warmer temperatures. Spotted hyena females have what look like penises and have to retract them into their bodies for mating. Coral can go
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