Whether it's redfin pickerel in the Kennebec River or sturgeon in the Great Lakes, nearly one-third of freshwater fish species are facing possible extinction, threatening food supplies, ecosystems and ...

Researchers spent five years developing an AI-based model to protect freshwater fish worldwide from extinction, with a ...

A tiny fish long feared lost has resurfaced in Bolivia, offering a rare conservation success story amid widespread habitat destruction. Moema claudiae, a seasonal killifish unseen for more than 20 ...

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 ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

For 162 million years, sturgeons have fended off everything they’ve faced. Now scientists are racing to save these living fossils. The white sturgeon is the largest freshwater fish in North America; ...

A team of researchers set out to find a tiny minnow everyone assumed was gone forever. They trekked to a remote river in eastern South Africa, cast their nets, and pulled up a dozen little fish that ...