Wildlife officials are investigating the suspicious death of a gray wolf near Yellowstone National Park. The killing is ...

Yellowstone is grieving after a poacher is believed to have shot and killed a prominent wolf from the park's most famous pack ...

A gray wolf was illegally shot and killed just north of Yellowstone National Park last month. According to wolf advocates, ...

A recent study found that wolves benefit willows by controlling the elk population that grazes around the trees. Their ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

The three wolves Utah killed were not symbols or statistics,” writes Eric Clewis with Defenders of Wildlife in an op-ed.

After being wiped out in California for nearly a century, the gray wolf has been making a comeback in the state, in a change that's been celebrated by conservationists and wildlife lovers. But as ...