Experts warn: wild fish accumulate more heavy metals and pesticides than aquaculture fish, according to a scientific review.

The world has seven continents, but do you know the largest freshwater fish in each? These creatures show the incredible ...

A rare predatory fish which lives 2,000 metres below sea level has been spotted in broad daylight. Spanish shark researchers say they may have captured the first-ever footage of a black seadevil fish.

In Thailand, this invasive species has posed a significant threat to local wildlife and has negatively affected fish and ...

The Northern Snakehead is a highly predatory fish that closely resembles the Louisiana native Bowfin. LDWF warns that the Northern Snakehead threatens our native species by outcompeting and ...

A novel system that chases larval zebrafish around an arena with predator robots is enabling scientists to understand how these days-old fish quickly learn in the real world. A novel system ...

As "The Fish Thief" details, the invasive creature sometimes referred to as a "vampire fish" once wreaked havoc on lake trout and other native species in Midwestern waters.