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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 ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE: Wolf 1229 howling in Yellowstone National Park, which includes parts of Wyoming, Montana and Idaho. (Scott Wolff/Cry Wolf ...

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 ...

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

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 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% ...

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

Deep in the heart of Yellowstone National Park, audio recorders roughly the size of hardcover books are documenting wolf barks, elk bugles and bird chirps 24 hours of the day, seven days a week, 365 ...