Female Mexican molly fish tend to go for big, colorful males, so what's a scrawny, drab guy to do? Scientists say he can flaunt bisexual behavior to bag a mate. IE 11 is not supported.

Female Mexican molly fish tend to go for big, colorful males, so what's a scrawny, drab guy to do? Scientists say he can flaunt bisexual behavior to bag a mate. Among Mexican mollies (Poecilia ...

Female Amazon mollies need to mate with a male to reproduce. On the face of it, that’s not a terribly surprising statement – it’s on par with “Humans breathe air.” But the tricky secret ...

Male sharks have a pair of fins called “claspers.” Male mollies also have a special set of pointed fins near their rear ends. One fish that can switch genders is the clownfish.