Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and ...

Are you interested in learning about the X-ray fish? This article has interesting facts you should know about the rare fish ...

This uniquely American freshwater fish is found in the Mississippi River ... Paleontologists have discovered fossilized bowfin from North America, South America, Europe, Africa, and Asia, the ...

A young boy fishing at Lake Meredith National Recreation Area brought in an unusual catch this week: a South American ...

Scientists conducting the first-ever South American river dolphin census have sighted hundreds of dolphins, raising hopes about the survival of some of the endangered species’ populations.

A 300kg (661lb) stingray caught in the Mekong river in Cambodia is the biggest freshwater fish ever documented, scientists say. It unseated the previous record-holder, a 646lb (293kg) Mekong giant ...

CHICAGO (CBS) -- A team of scientists from the Field Museum of Natural History has just returned from one of the remotest places on earth. The scientists spent weeks exploring the far reaches of the ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found.