The northern snakehead is one of the most unsettling invasive species in America: a fish that can wriggle across land, ...

Some of the ocean’s fastest and most fearsome predators—like great white sharks and tuna—are running hotter than expected, and it’s costing them dearly. New research shows these warm-bodied fish burn ...

A study found flatheads occupy the highest level in the food web, forcing native species like smallmouth bass to change their diets. The invasive catfish are growing much faster and larger in the ...

Some of its most powerful predators survive not just through strength, but through constant energy trade-offs that rarely ...

Terengganu's Tasik Kenyir, Malaysia's largest man-made lake, was once teeming with native fish species like tengas, lampam ...