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

Yellowstone National Park is beautiful year-round, but winter means smaller crowds to let you appreciate the views.

The accompanying footage, captured by guide Andrea Baratte of Yellowstone Adventure Tours, shows one wolf’s pursuit of a bull ...

It’s an animal-eat-animal world out there, especially in Yellowstone National Park. There are almost 70 different mammal species in Yellowstone, and most of those can be separated into two categories: ...

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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 ...

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

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.

Tourists visiting Yellowstone National Park on October 6 were left stunned after witnessing a man walk straight toward a wild wolf pack in what authorities are calling a highly dangerous and reckless ...

Faced with the quandary of how to get mountain lions out of trees for scientific analysis, researchers dosed them with ketamine, then climbed up to ...

A prominent wolf that lived among Yellowstone's most famous wolf pack is believed to have been illegally shot and killed just outside the park last month, according to wildlife experts. NOTE: The ...

Beckie Elgin's story on Yellowstone wolves in Sunday's travel section was interesting but she glossed over the ongoing slaughter of wolves around Yellowstone in Wyoming, Montana, and Idaho. Anyone who ...