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

Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members working together to isolate and exhaust an animal. That reality makes one ...

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 ...

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 ...

In movies and literature, a wolf’s haunting howl can signify danger or untamed nature. In real life, researchers in Yellowstone National Park are analyzing those howls with cutting-edge AI technology ...

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 ...

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.