When endangered species reach low numbers, their survival can depend on whether or not they have new habitats to live in, ...

Scientists at the American Museum of Natural History investigated old specimens that had been at the museum for decades and ...

If granted protections, the species would be the first to be protected under the current Trump administration.

Researchers have rediscovered a rare fish species presumed to be extinct after it was not seen for more than eight decades.

Scientists have discovered the fossilized remains of a new fish species called Ferruaspis brocksi, which lived 15 million years ago, and some of the fish have their final meals preserved inside their ...

Spots, warts, and parasites on fish can look alarming. Learn what common fish diseases look like and whether infected fish ...

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, ...