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

Researchers are urging Yellowstone officials to invest in greater protection after the findings of a new report ...

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

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

New research shows that dead trees in Yellowstone National Park may pose a greater fire danger than previously suspected.

America’s First National Park Yellowstone National Park holds the title of being America's first national park, and it was ...

Glacier National Park and Yellowstone National Park both welcomed the second highest number of visitors on record last year, ...

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 ...

Amazing! When I first started visiting the park I was told that they were there but (were) like ghosts because even Rangers ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

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

Glacier National Park and Yellowstone National Park both welcomed the second-highest number of visitors on record last year.