Researchers have elucidated how a single photoreceptor in the pineal gland of zebrafish detects color. We see color because photoreceptor cones in our eyes detect light waves corresponding to red, ...

A Virginia man caught a fish that’s so rare, it was recognized by state wildlife officials. Retired veteran John Byrd, of Bowling Green, Virginia, reeled in an 11.5-inch blue-mouth chain pickerel from ...

The Patagonian region, extending from the Andean foothills to the sub-Antarctic shelf, supports a diverse assemblage of fish taxa that display a wide range of life histories and dispersal strategies.

Dominant males of an Indonesian species of fish turn black during periods of heightened aggression, scientists have discovered. Their blackened markings, which quickly emerge at the start of a ...