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

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

A new study reveals the profound ecological effects of wolves and other large carnivores in Yellowstone National Park, ...

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

As people gathered on a road in Yellowstone to watch a pack of wolves devour a bison, the buffalo’s herd charged into them ...

A pack of wolves took down a bison in Yellowstone National Park and attracted a crowd of people — that the rest of the bison ...

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

To honor the 30th anniversary of Yellowstone’s wolf reintroduction, the 4th annual Yellowstone Summit will offer an exclusive lineup of experts, researchers and storytellers. The online presentations ...

Without a natural predator, they overgrazed the land, he said, and pointed to the success of wolves in Yellowstone in restoring biodiversity. "We want wolves here because we know the ecological ...

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