The iconic landscape of Yellowstone National Park has witnessed an increase in forest cover, thanks to this wild animal.

An iconic apex predator appeared through thick fog like an apparition and cautiously watched a photographer in Yellowstone ...

New research has demonstrated the powerful impacts the reintroduction of predators can have on an ecosystem. The presence of ...

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

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

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

Park City Institute will present "National Geographic Live! Wild Wolves of Yellowstone" on Friday with Explorer Doug Smith.

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

Two rare black wolves, likely siblings, were spotted on camera crossing a stream in a Polish forest, a conservation ...

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

A guide in Yellowstone National Park on Monday shared stunning footage showing a black wolf partially obscured by mist as other wolves remained mostly hidden in the background. “This was the ...

A guide in Yellowstone National Park on Monday shared stunning footage showing a black wolf partially obscured by mist as other wolves remained mostly hidden in the background. “This was the most ...