Paleontologists in Australia discovered a remarkably preserved fish species, revealing its last meal and offering new ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...

A community of rare fish enthusiasts collects endangered species of freshwater fish from lakes and springs around the world, ...

Evolving roughly 27 different times in the long history of fish, bioluminescence—the biological production of light—is one of ...

The Oregon Department of State Lands keeps a map of the vital waterways where the state's most iconic and vulnerable fish ...

In an Australian first, researchers have described a new species of 15-million-year-old fossilized freshwater fish, ...

A team of explorers rappelled into the shaft-like cave and found a “pinkish” animal living in a cold river of the “deep dark zone.” Take a look.

NAIROBI ― A new killifish species, scientifically known as Nothobranchius sylvaticus, has been documented in seasonal swamps ...

Researchers urge stronger protections like fishing limits and habitat conservation to prevent further decline in shark ...

But for some species, there is still hope. A community of rare fish enthusiasts collect endangered species of freshwater fish from the lakes and springs of East Africa, Mexico and elsewhere ...