New research has found that roughly half of Australia's freshwater fish are fond of snacking on animal and plant material, ...

When oxygen disappears, most fish suffocate. This one ferments its own metabolism and waits months for spring beneath frozen ...

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 ...

The largest freshwater fish in North America, which was once abundant in California’s major rivers and San Francisco Bay, has declined in numbers to a point that state officials will consider whether ...

WASHINGTON — Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday. “Huge rivers like the ...

SAN JOSE, Calif. (KGO) -- Concerning findings about the world's freshwater fish population, 25% are in danger of extinction according to the International Union for Conservation of Nature. It's a ...

The Convention on the Conservation of Migratory Species of Wild Animals (CMS) does not adequately address the issue of migratory freshwater fishes.

A tiny fossil fish from Alberta is forcing scientists to rethink a story that has sat quietly in textbooks for decades. It is ...

New research has found that roughly half of Australia's freshwater fish are fond of snacking on animal and plant material, ...