A protected apex predator was found dead in the iconic Colorado lands where the elusive creatures first roamed a century ago ...

A collared gray wolf released in Colorado in January as part of the state's historic reintroduction effort died in Rocky ...

A gray wolf has been found dead in a national park, prompting an investigation into the death of this federally protected ...

Colorado's collared gray wolves continued to travel widely last month—even roaming in watersheds that reach into the western ...

The expansion of gray wolf populations is upending California cattle operations, leading to millions of dollars in losses for ranchers, a report published Monday has found. The introduction of ...

Environmental groups are calling on the U.S. government to release details of the accidental killing of a pregnant Mexican ...

By Shannon Lukens. File photo of a British Columbia wolf courtesy CPW.   Another gray wolf, brought to Colorado from Canada, ...

For the first time in 16 years, Washington state’s overall gray wolf population decreased from the year before, based on information gathered by the state’s Department of Fish and Wildlife and ...

A collared gray wolf released in Colorado in January as part of the state’s historic reintroduction effort died in Rocky Mountain National Park this week, wildlife officials said Thursday.