With razor sharp teeth, armor like scales, and a body that can grow longer than a person is tall, the alligator gar looks ...

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

When saltwater fish long ago evolved to live in fresh water, many of them also evolved a more sophisticated hearing system, including middle ear bones similar to those in humans. Two-thirds of all ...

A hidden underwater camera captured a remarkable view of several freshwater fish moving gracefully across a rocky riverbed in ...

If you’re a fan of giant fish, you already know about the Mekong River. Now, familiarize yourself with the new record-holder in the largest freshwater fish category: a giant stingray that measures ...

The ‘megafish’ living in southeast Asia’s Mekong River once faced extinction. A new rapid response system is helping reverse their dire outlook.

The world’s largest freshwater fish, a 13-foot-long, 661-pound stingray, has been discovered in the Mekong River in Cambodia. Scientists say the animal is a hopeful sign for the river, which faces ...

People in Chicago fishing on Lake Michigan on December 25, 2021. The new study found particularly high levels of PFAS in fish from the Great Lakes. Terrence Antonio James / Chicago Tribune / Tribune ...

What has long been one of the great wildlife mysteries – the identity of the world’s largest freshwater fish – appears to have been solved last week as fishers in northern Cambodia, working with an ...

Freshwater lakes across North America and Europe have been quietly changing colour for decades and not in a good way. A growing number of rivers, ponds, and lakes are turning a murky tea-brown shade, ...

More than 90% of popular freshwater fish in Southern California are carrying human-infecting parasites, researchers say. This poses a significant danger for those who like to eat freshly caught ...