Last week we featured footage showing bison stampeding toward a snow coach in Yellowstone National Park, as tourists watched ... their vehicles observing a wolf kill. Vanuga described the scene ...

Last week we featured footage showing bison stampeding toward a snow coach in Yellowstone National Park ... filled morning!” The wolves that killed the bison cow belonged to the Wapiti Pack, which ...

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

Footage shows the black wolf with a mystical quality – as other wolves remain mostly hidden – amid steam at a Yellowstone thermal area.

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

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

The dark fur is rare in Europe due to a reduced genetic diversity, but at least half of the wolf population has black fur in Yellowstone National Park in the United States. Because wolves travel ...

WARSAW, Poland (AP) — Two rare black wolves, likely siblings, were spotted on camera crossing a stream in a Polish forest, a conservation organization said Sunday. The unusual sighting ...