Allan Hathaway, a wildlife photographer, captured the video of the Wapiti wolf pack chasing after the lone bison in Yellowstone National Park.

Although a spectacular photo taken by a wildlife photographer in Yellowstone may give the illusion that this grizzly and two wolves are buddies, ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

In Yellowstone’s wild chess match between wolves and cougars, it turns out the real power play is theft. After tracking nearly a decade of GPS data and thousands of kill sites, researchers found that ...

Add Yahoo as a preferred source to see more of our stories on Google. On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National ...

"Free-ranging wolves in Yellowstone: where are they gonna go? What are they gonna do?" A must see trailer for one of my favorite documentary films of the year so far. Lost Wolves of Yellowstone is a ...

This winter saw the most wolves from Yellowstone National Park killed in about a century. That's because states neighboring the park changed hunting rules in an effort to reduce the animals' numbers.