Researchers identified a new freshwater fish species in South Africa after years of genetic testing and analysis.

A dozen fish pulled from a South African river sparked years of debate before being confirmed as a new species.

Whether it's redfin pickerel in the Kennebec River or sturgeon in the Great Lakes, nearly one-third of freshwater fish ...

A strange, big-eyed "dragonfish" hidden under Antarctic ice for 780,000 years has finally been discovered - and it's already at risk.

Many invasive fish, plus other animals and plants, are ecological nuisances in our state. So the NC Wildlife Resources Commission groups them all together as “Aquatic Nuisance Species,” teaching local ...

Scientists from the Leibniz Center for Tropical Marine Research (ZMT) in Bremen, together with colleagues from Central America, have described a new fish species in the Gulf of Mexico. Hypoplectrus ...