A peaceful evening at Yellowstone National Park turned into a terrifying wildlife encounter when an agitated bison charged a grandfather, launching him several feet into the air in front of stunned campers.
The dramatic incident, captured on camera by wildlife photographer Mike MacLeod, has renewed warnings from park officials about keeping a safe distance from wild animals—especially during bison mating season.
A Routine Walk Became a Life-Threatening Encounter

Mike MacLeod and his wife were camping in Yellowstone when they noticed an unusually aggressive bison moving through the campground.
Before the attack, MacLeod watched the animal chase a group of boys before charging into another campsite, forcing campers to abandon their dinner.
Moments later, the bison focused its attention on a grandfather and his 13-year-old grandson who were walking nearby while maintaining what appeared to be a respectful distance.
A Heroic Decision to Save His Grandson

As the bison suddenly charged, the grandfather reportedly told his grandson to run while he moved in another direction, hoping to draw the animal away from the child.
His quick decision likely saved his grandson from harm.
The bison pursued the grandfather, eventually catching him and tossing him nearly eight feet into the air with its horns.
Bystanders Rushed to Help

After the man landed on the ground with serious injuries, MacLeod stopped filming and immediately ran toward the scene.
Fearing the bison might continue its attack, he and several other campers worked together to distract and drive the animal away until emergency responders arrived.
According to MacLeod, despite his injuries, the grandfather’s first concern was not himself.
“The first thing he asked was, ‘How is my grandson?'”
The teenager escaped without injury.
Why Was the Bison So Aggressive?

Wildlife experts believe the timing of the incident may have played a major role.
The attack occurred at the beginning of Yellowstone’s bison mating season, which typically runs from June through September. During this period, male bison become highly territorial and aggressive as they compete for mates.
According to the National Park Service, bulls often:
- Roll in the dirt to display dominance
- Charge perceived threats without warning
- Defend their space aggressively
- React unpredictably, even when people appear to keep their distance
Recovery Underway

The grandfather suffered multiple fractures after the attack but survived the ordeal.
He continues recovering after surgery and physical therapy, expressing gratitude that the encounter was not even more severe.
The incident serves as another reminder that Yellowstone’s wildlife remains completely wild, and even experienced visitors should always stay alert and maintain recommended viewing distances.
Featured Image: Photo by KOBU Agency on Unsplash