A new global study reveals that nearly one in four freshwater animal species is at high risk of extinction, scientists warn.

About four out of 10 freshwater fish species in North America are in peril, according to a major study by U.S., Canadian and Mexican scientists. And the number of subspecies of fish populations in ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

Nearly a quarter of the world's freshwater species are at risk of extinction, according to new research. A detailed extinction assessment of more than 23,000 species of freshwater fauna by the ...

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate ...

For a long time, researchers believed that a certain group of freshwater fish developed their super-hearing abilities after ...

A zoo in southwest England is working to rescue a freshwater fish species, considered one of the "most imperiled groups of animals on earth" from extinction. Whipsnade Zoo in Dunstable, a town in ...

FLAGSTAFF, AZ (AZFamily) — A first-of-its-kind study has an alarming conclusion: a quarter of all freshwater fish species could go extinct because of pollution and climate change. Northern Arizona ...

An environmental group is proposing the Umpqua chub and northern roach, both native to southern Oregon, receive Endangered ...

A tiny fish fossil found far inland in Canada reveals new insight into the evolution of catfish, carp, and 2/3 of all ...

When saltwater fish long ago evolved to live in fresh water, many of them also evolved a more sophisticated hearing system, including middle ear bones similar to those in humans.

The Center for Biological Diversity petitioned the federal government Thursday to protect two declining freshwater fish ...