Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

A look at how wolf policy shifted from eradication to protection, and why wolf conflict is rising again across the West. The ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... How the wolf changed Yellowstone 30 years after ...

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

Wolf 1478F could have become the Junction Butte pack alpha, experts say.

These rare kills in Washington State have biologists searching for answers. “Everyone always assumes wolves have the upper ...

For the past 15 years, Luke Painter has been traveling to the northern range of Yellowstone National Park, where mountains rise and tributaries carve valleys of sage, willows and trees. This includes ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing ...

A new study shows how wolves steal kills from cougars in Yellowstone, driving an uneven feeding rivalry and changing cougar ...