Meet the Atlantic wolffish, green humphead parrotfish, and other unusual species with extraordinary adaptations.

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

Scientists found thousands of patterned fish nests in Antarctica’s Weddell Sea, boosting calls for marine protected areas.

Beneath the ice of Antarctica’s Weddell Sea, scientists discovered a vast, organized city of fish nests revealed after the ...

The sea lamprey looks like it’s from another planet, but this ancient creature has a surprising amount in common with humans ...

Eel grass beds extend beyond just a hangout spot for fish. They’re also an important resource for stabilizing shorelines, ...

Researchers unearthed a surprising seafloor discovery: a highly organized city of fish nests with striking geometric patterns ...