Researchers identified a new freshwater fish species in South Africa after years of genetic testing and analysis.

A search for a fish lost to extinction led to a brand-new species hiding in a South African river.

A dozen fish pulled from a South African river sparked years of debate before being confirmed as a new species.

A fish previously declared extinct has been released back into the wild in Australia. The olive perchlet, a small oval-shaped fish with large eyes, was considered extinct in Victoria, Australia, in ...

Whether it's redfin pickerel in the Kennebec River or sturgeon in the Great Lakes, nearly one-third of freshwater fish ...

Scientists used AI to analyze 10,631 freshwater fish species and found that stable, connected rivers are critical for ...

As the Atlantic warms, many fish along the east coast of North America have moved northward to keep within their preferred temperature range. Black sea bass, for instance, have shifted hundreds of ...

The rare fish was last spotted in Victoria, Australia in 1929 North Central CMA A fish previously declared extinct has been released back into the wild in Australia. The olive perchlet, a small ...