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 ...

Imagine you’re a Japanese eel, swimming around just minding your own business when—bam! A predatory fish swallows you whole and you only have a few minutes to make your escape before certain death.

"Migratory salmon sharks feed on salmon near Alaska’s Aleutian Islands during the summer and breed in warmer waters off the coasts of Oregon and California during the winter. Along their journey, ...

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