London Zoo is appealing to keepers of rare fish around the world to try to find a mate for an endangered tropical species. The Mangarahara Cichlid vanished from the wild in Madagascar when the only ...

Size really does matter when you are a fish looking for a shoal-mate. And according to a new study "smell" plays a critical role in helping fish hunt for mates of a matching size. Associate Professor ...

A new study of the genetic profiles of wild and hatchery coho salmon demonstrates important distinctions in how the two types of fish form mating pairs. These findings by Oregon State University ...

Choosing a mate does more than decide who reproduces with whom. Over many generations, those choices can shape which body sizes, colors, markings, and other traits become common in a population. That ...