Watch: Fisherman narrowly avoids bison encounter in Yellowstone National Park

YELLOWSTONE NATIONAL PARK, Wyoming - It was a close call for a fisherman after a bison quietly approached him from behind in Yellowstone National Park.MISSING HIKER FOUND DEAD IN GLACIER NATIONAL PARK AFTER SUSPECTED BEAR ATTACKIn a video captured by parkgoer Kristi Wilt, the bison can be seen...