A new technique for sexing a giant Amazon fish may help create a sustainable source of protein in South America, report researchers writing in Fish Physiology and Biochemistry. Facing depletion ...

The rotting body of a dead Amazon "river monster" recently washed ashore in Florida, raising concerns about whether this gigantic predatory fish has joined the Sunshine State's ever-growing list of ...

An invasive armored catfish is spreading through waterways on Florida’s Space Coast, carving into shorelines and even harming manatees.