Video shows bison attack at Yellowstone National Park

Terrifying video shows an 81-year-old grandfather launched into the air by a rampaging bison at Yellowstone National Park. Reporter William La Jeunesse details the incident, explaining how quickly bison can attack during mating season.

Fox News' William La Jeunesse reports on a terrifying bison attack at Yellowstone National Park, where an 81-year-old grandfather was launched into the air. The man survived with broken bones. This incident highlights the dangers of approaching bison, especially during mating season, and the speed at which these animals can react.