"It's something that I would be concerned about." Expert issues warning after observing worrying trend on US trail cameras: ...

If you’re in Yellowstone and accidentally stumble across a wolf, the park recommends standing your ground, waving your arms ...

A Yellowstone National Park trail remained closed Wednesday after a possible grizzly bear attacked a hiker, leaving him with serious injuries. The 29-year-old man suffered injuries to his chest and ...

A tourist hoping to capture a magical moment at Yellowstone National Park did so after correctly foreseeing the movement of a bison herd.

A 29-year-old man suffered serious injuries in Yellowstone National Park in what federal wildlife officials said could have been a grizzly bear attack. The encounter on Tuesday afternoon, Sept. 16 ...