Bison Chases Family of Tourists in Yellowstone National Park

An enraged bison chased a family of tourists in Yellowstone Park. As the snarling beast approached, a little girl in pink bolted from the trees as stunned spectators looked on. Moments later, the girl's frantic dad appeared and told her not to move. With the family frozen in fear, the angry bison galloped away. The National Park Service says guests should stay at least 25 yards away from bison. The family in the video was much further than that, but some on social media are still criticizing them.