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

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

In an apparent case of mass wildlife thrill killing, 12 antelope were shot near Kemmerer, including several that were wounded ...

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 ...