Originally Posted by Sheseala Ok, so sexual reproduction gives us wonderful gene shuffling.
So.. why are there separate sexes still? Why isn't everything hermaphroditic?
Hermaphrodism is very common in smaller and simpler animals. And it is ubiquitous in plants. But almost non-existant in vertebrates. There are some species of fish and frogs that can change their sex, but I don't think any of them can be both sexes at once. There is likely something about the vertebrate way of reproducing that doesn't support hermaphrodism.
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