WASHINGTON (Reuters) - Primitive fish already may have possessed the genetic wiring needed to grow hands and feet well before the appearance of the first animals with limbs roughly 365 million years ...

Jawless, bloodsucking fish could help us understand how humans and all other vertebrates evolved, scientists say. Turns out, lampreys — notable for their lack of jaw and generally terrifying ...

Fish are doubtlessly feeling about now whatever fish feel when the urge to spawn kicks in. In but a little while – if not today or yesterday – female and male will be heeding an ancient directive by ...

Christopher Begley caught this 30-year-old fish in Tennessee’s Clinch River using “cut suckers” on his line. Wildlife Sgt. Brent Harrison photo A lucky angler yanked a 5-foot-long fish out of east ...