University of Missouri researchers have shown how an all-female fish species called the Amazon molly defies the long-held belief that asexual reproduction is an evolutionary dead end. The key is gene ...

It is slimy, mysterious, and one of Europe’s most enigmatic species: the eel. For centuries, researchers have tried to discover where and how these fish reproduce, but to this day, no one knows for ...

Japan is an island nation surrounded by the ocean. Fish are deeply familiar to us, yet they hold many mysteries and possibilities—from their ability to change sex depending on environmental conditions ...