Over the last month, two of Colorado’s latest gray wolf transplants were killed after crossing the border into Wyoming.

Colorado Parks and Wildlife officials report that black bears are emerging from their dens and are looking for food.

As an emergency medicine doctor, I’ve seen my fair share of life-threatening cases. Some of the most tragic involve ...

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

The body that makes the final review of ballot measures on Wednesday rejected a proposal to repeal Colorado's wolf ...

A horse in Douglas County and a horse in Jefferson County were both confirmed to have positive cases of Equine Infectious Anemia, the Colorado Department of Agriculture announced Thursday.

A proposed citizen initiative to end wolf reintroduction by the end of 2026 has resulted in ranchers and wolf advocates being ...

A group seeking to end wolf reintroduction by Dec. 31, 2026, will start gathering the signatures it needs to get a citizens’ ...

In recent weeks, the staff at the Ocean Shores Animal Hospital has been accused of allegedly turning people away and denying ...

Since 2018, Denver has given 140 bison to 10 tribes, including the Northern Arapaho Tribe in Wyoming, a nonprofit on the ...