Yellowstone visitors had a front-row seat to the stark reality of the contest between predator and prey early Sunday, when ...

A Yellowstone wolf showed its more playful side Monday, somehow removing and carrying off a sign put up warning tourists ...

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Yellowstone wolf watchers were gathered in awe on the morning of Oct. 6, ogling a pack of at least five black wolves roaming through the sagebrush near Lamar Valley. But the crowd soon saw something ...

An adolescent wolf was caught on camera running across a road carrying a wooden signpost in its mouth.

Touching wild animals, especially in National Parks, is both dangerous and illegal. Even so, many people make headlines every year for getting far too close to potentially threatening animals.

This kind of behavior is not encouraged. A man was caught on video approaching and spraying at a Yellowstone wolf pack. Bystanders shouted warnings. Park officials advise staying at least 100 yards ...

New tech is helping researchers better understand Yellowstone's apex predators.

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 ...

A viral encounter in Yellowstone National Park shows a wolf stealing a sign warning tourists about grizzly bears.

A new scientific review challenges the headline-grabbing claim that Yellowstone’s returning wolves triggered one of the strongest trophic cascades on Earth. Researchers found that the reported 1,500% ...