A guide in Yellowstone National Park on Monday shared stunning footage showing a black wolf partially obscured by mist as ...

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

In Yellowstone National Park, wolves and other large carnivores are slowly but steadily bringing back balance to the ecosystem, particularly in herbivores and plants.

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

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.

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

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

A new study has unveiled the far-reaching ecological impact 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 ...

In one clip, a black wolf and a gray wolf slowly crossed a stream in the forest, the water nearly up to their bellies, before ...