The population of eastern gray whales, which annually migrate along the West Coast between the Arctic and Mexico, has been ...

Discover the thick billed parrot, North America’s endangered parrot, with its striking colors and dwindling wild population.

MOST ENDANGERED ANIMALS IN NORTH AMERICA ...

Conservationists at the Minnesota Zoo say recovery efforts for one of North America's most endangered butterfly species are ...

Audubon Zoo has released dozens of endangered Louisiana pine snakes into the wild as part of a decades-long recovery program.

Philip Hamilton of Putney appeared on NBC5 In Depth to discuss his decades of work studying critically endangered North ...

The Interior Department and the Commerce Department announced the administration’s reinterpretation of what defines “harm” in ...

Some fireflies species are in trouble, but here’s why they won’t completely disappear – and simple ways you can help save ...

Light pollution is blinding North American fireflies. Discover how artificial light disrupts their mating and how you can ...

On June 29, Gracie the Giraffe returned to her South Texas ranch after a 17-day walkabout and attendant media sensation. ...

The Trump administration finalized a rule Friday that changes how agencies enforce the Endangered Species Act. The administration narrowed the definition of "harm" under the landmark law.

A whooping crane's appearance northeast of Calgary is being celebrated by local birdwatchers, with the rare sighting of North America's tallest bird being hailed as a chapter in the iconic animal's ...