When a bison stampede overtakes a bridge at Yellowstone National Park, it's best to get out of the way of the thundering ...

In the video, a herd of dozens of bison gallop across a bridge before charging up a steep hill ... of these animals once roamed the North American continent," they said. "A million strong herd ...

One might think that the National Park Service and the State of Montana, the two entities charged with stewardship of American bison, our national mammal, could do a better job. The Alliance for ...