Bison That Charged Yellowstone National Park Visitors Was Provoked

The other day two hikers in the Biscuit Basin area of Yellowstone National Park were charged by a bison, and one was head-butted and flipped into the air. Initially, the park's report sounded as if the bison attacked unprovoked. But this video shows differently.
- By Kurt Repanshek - July 22nd, 2010 8:29am