Comparing pollen records from three lakes in different geological substrates highlights the influence of geology and climate on long-term vegetation development.

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.

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

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

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

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

Creel and his colleagues have been researching wild dogs and lions in two Zambian national parks for more than a decade.

A conservation charity was originally planning on studying beavers when they discovered the footage of the rare animals ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Cathy Whitlock, Regents Professor ...

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

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