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.

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

If cow belches and farts are so bad, why didn’t the vast herds of 60 million bison roaming the U.S. West before the 1880s ...