A family enjoying the views of Yellowstone National Park had a terrifying experience when a Bison got agitated and attacked their 9-year-old daughter. 18-year-old Hailey Dayton was filming the bison eating when suddenly it charged the family and sent the girl flying in the air. Thankfully she is ok and only suffered some bumps and bruises. The park does warn their guest to stay at least 25 yards away from the wild animal, no matter what.