Trails left in ancient rock have been attributed to fish getting the hang of the then-newfangled concept of crawling. If correct, this would push back the conquest of the land by vertebrates by 10 ...

In an exciting first, an Australian team of scientists identified a new species of freshwater fish that swam in nearby waters over 15 million years ago, offering fresh insights into Australia’s ...

The first known cases of accidental choking have been discovered, dating back 150 million years, when some opportunistic fish got more than they bargained for picking off algae and slime from dead ...

A species of coelacanth, a fish that dates back to before the dinosaurs, has been photographed in Indonesia for the first time. Chappuis overcame the challenge of deep mixed-gas diving, which has led ...

Scientists uncovered a 310-million-year-old fish fossil with a “tongue bite,” teeth on the roof and floor of its mouth that worked like a second jaw. This adaptation, previously thought to have ...

A study published in the Nature journal alters how the evolution of fish has been historically understood. Fossilized fish and other sea creatures have often been pivotal in new scientific discoveries ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...