Yellowstone is home to nearly 5,000 bison, which must contend with wolves in the winter, and wolves and grizzly bears during ...

Colorado voters narrowly decided to reintroduce gray wolves to the western part of the state, sparking tensions with ranchers ...

Gray wolves could be removed from the federal Endangered Species Act under a bill reintroduced by Republican U.S. Reps.

A new study has unveiled the far-reaching ecological impact of wolves and other large carnivores in Yellowstone National Park ...

But Paunovich soon realized it was Canis lupus: the gray wolf. The last wolves seen in Yellowstone — two pups — were killed ...

A new study reveals the profound ecological effects of wolves and other large carnivores in Yellowstone National Park, showcasing the cascading effects predators can have on ecosystems.

Laws and regulations adopted by Montana and Idaho lawmakers to reduce wolf populations were "at odds with modern professional ...

The measure, which had its first hearing before the House Fish, Wildlife and Parks Committee on Jan. 30, would allow the use ...

Finally, the gray wolves peered out of the crates ... and pointed to the success of wolves in Yellowstone in restoring biodiversity. "We want wolves here because we know the ecological importance ...

Gray wolves could be removed from the federal Endangered ... with the U.S. Fish and Wildlife Service leading previous efforts including in Yellowstone National Park and Idaho.