He broke his femur in four places and required surgery.

The bison that tossed a grandfather into the air at a Yellowstone campground will face no management action, park officials said. Victim Carl Isom-McDaniel needed surgery.

A shocking video from Yellowstone National Park captures a massive bison attacking a tourist, flipping him 8 feet into the air. The man, walking with his grandson, sustained broken bones but is

A quiet campground walk turned into a frightening scene captured on video at one of America's most iconic getaways. An older man was seriously injured Friday evening, July 10, after an agitated bull bison charged him at Bridge Bay Campground in Yellowstone National Park.

A terrifying moment was caught on camera when an enormous bison appeared to chase after a child at Yellowstone National Park.

What started as a yearly trip for a grandfather and his grandson turned into a visit to a Montana hospital after a bison attack at Yellowstone National Park.

A 65-year-old man was thrown 8 feet into the air by a bison that charged at him in Yellowstone National Park, video shows.

The man and his grandson appeared a safe distance away from the bison before it quickly chased them down.

“The bison was at least 6 feet tall,” said Mike Macleod after capturing the incident on video