Worried for our children wrote:
Actually, yes. But I think you knew this because you listed two of the animals, fish(specifically the clown fish) and some species of frogs. The earthworm also has both sex organs. You should research it further, pretty interesting, a bit strange, and a bit remarkable. The animal kingdom is awesome, in the true sense of the word.
Actually I've done a good deal of research along these lines and yes there are some interesting examples, such as the black sea bass, all of which are female at birth and only change into a male when the resident male gets eaten or otherwise disappears. BUT, they aren't confused about it, like humans.