EDITOR’S NOTE: This story is a collaboration between The Associated Press and Grist.

New maps released this week document the world’s largest land mammal migration, revealing the seasonal journeys of more than ...

A new documentary film details how a catastrophic pronghorn die-off influenced the restoration of an estimated 18,000 acres ...

It would still be illegal to harm Mountain West species, such as jumping mice, migratory birds and desert tortoises, but ...

Changing the definition of “harm” in the Endangered Species Act, as the Trump administration proposes, could overhaul the ESA ...

“Too many animals on the landscape can lead to rangeland degradation and health concerns,” said Justin Binfet, wildlife management coordinator for Wyoming Game and Fish Department. The state ...