Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our ...

A cavity in the middle of the rockhead poacher’s skull might be used like a maraca to produce sound, new research suggests.

During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...

With your trusty fishing rod in-hand, you can fish just about anywhere in Heartopia, from the fast-flowing rivers around the ...

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

Sea anemones and jellyfish don’t have brains, but the way their neurons behave during sleep shows some surprising ...

A fish species thought to be extinct has suddenly been found in a small pond in Bolivia. The rare seasonal killifish, Moema claudiae, has not been recorded in the wild for more than 20 years and its ...

Sleep in fish may look different from humans, but rest is essential for survival. Here’s what experts have to say about fish sleep. A protective mucous cocoon surrounds this parrotfish as it sleeps in ...

This is the adorable moment a fish swims over to a diver to be petted! The diver can be seen stroking the fish in Florida, USA. The diver, Jonah Kowall, filmed the footage while out diving. Jonah said ...

We tend to credit animals like cats and dogs with a certain degree of mental complexity. But fish aren't usually afforded that kind of praise. "They do not talk, they do not bark," says Caio Maximino, ...

BEDFORD, Texas — Dozens of dead fish were discovered at Boys Ranch Lake over the weekend, leaving city staff and parkgoers concerned and looking for answers. On July 26, Bedford staff were notified ...

Can we finally retire the myth that goldfish have three-second memories? This oft-cited “fact” has been thoroughly debunked. Scientists have shown that fish can distinguish and remember individuals, ...