California officials have voted to list several populations of mountain lions as threatened. Here's what to know.

Decades of overfishing and habitat degradation led to huge declines in freshwater biodiversity in China's longest river, but ...

China's Yangtze River – in ecological decline for decades – is showing early signs of recovery following the introduction of a sweeping 10-year ...

Located at the Fort Ross State Historic Park within The Greater Farallones National Marine Sanctuary, the Fort Ross Conservancy works to promote coastal preservation, conservation, education and ...

An extraordinary effort to halt all commercial fishing for 10 years on the Yangtze River is restoring habitat and ...

The Bronx Zoo, in partnership with the AZA Species Survival Plan (SSP) program, welcomed its first primate birth in the new World of Darkness exhibit.

Green sea turtles have recovered, but proposed rules could weaken habitat protections essential for endangered species in the ...

National and regional conservationists have released 34 fish — including critically endangered and rare species — into the ...

Forty years ago, wood stork populations in Florida were plummeting. But federal and private efforts have made a dramatic difference, officials say.

The wood stork was once on the brink of extinction and now can be found in 13 counties across Georgia's coast and southern ...

Slimy, snake-shaped and yellow-brown, freshwater eels swim the rivers, estuaries and the coastal waters of Asia, Oceania, Europe, Africa and North America. Despite what their name says, these fish ...

The highly elusive Sierra Nevada red fox was spotted for the first time ever in the southern portion of the California ...