A massive bull bison launched a grandfather eight feet into the air during a violent attack at Yellowstone National Park’s Bridge Bay Campground, leaving the tourist seriously injured in front of his grandson during what should have been a family camping trip.
Attack Caught On Camera
The unidentified bearded man was walking with his grandson Friday when the powerful animal suddenly charged. Video footage captured the terrifying moment as the tourist tried running around a cluster of pine trees to escape the bison, which had been taking a dust bath moments earlier. The bull head-butted the man with such force that he flew through the air like a ragdoll before crashing to the ground. Witnesses reported the victim suffered intense pain in his hips and the leg he landed on, though no external injuries or blood were visible at the scene.
Montana photographer Mike MacLeod, who recorded the incident, had to intervene when the aggressive bison turned toward a group of children taking cellphone photos. MacLeod ran at the animal, yelling and making himself appear as large and intimidating as possible to draw its attention away from the injured grandfather lying on the ground. The photographer feared the bison would gore the victim during a follow-up attack.
Coordinated Emergency Response
Bystanders immediately organized a response after the bison retreated. One person held the victim’s hand while another stood guard to prevent the animal from returning. A woman called 911 from her vehicle while another performed a blood sweep of the injured man. No update on the grandfather’s condition has been released by park authorities or medical facilities. MacLeod had been attempting to capture dramatic footage of the bison’s unusual behavior when the attack unfolded.
Rutting Season Danger
The attack occurred during the current rutting season, which runs from June through September, when male bison display heightened aggression and territorial behavior. Bulls compete for dominance and mating opportunities with females during this period, making them particularly dangerous to humans who venture too close. MacLeod confirmed the bison appeared agitated and was charging at multiple targets indiscriminately. The animal had walked through the campground and approached the group of children before the photographer’s intervention, demonstrating the unpredictable nature of wildlife during mating season.
What This Means
This incident highlights the ongoing danger tourists face when they fail to maintain safe distances from Yellowstone’s wildlife. Despite repeated warnings from park officials, visitors continue to approach bison for photographs and videos, often with devastating consequences. The attack serves as a stark reminder that these animals, despite their seemingly docile appearance, are wild creatures capable of explosive violence. Families visiting national parks during summer months must exercise extreme caution and respect established safety guidelines to prevent similar tragedies.

Stay 25 yards away??? Really? More like 75 yards. If you must get a selfie, close up and personal. YOU are asking for it.
No SYMPATHY from me if you get gored.
Bison can run up to 35 mph for FIVE MILES without stopping.
The Bison walked through their campsite. Did you not see the same video.
And had it been my campsite he walked thru, I would’ve locked myself in my vehicle. I try to stay way, way, WAY away from wild animals,
No sympathy here either. Any intelligent person should know that wandering around a 2000 pound buffalo, pointing things at them, etc, is not a smart idea. A buffalo can’t understand that you are a nice old grandpa who is only using a camera and not a weapon. You were invading his natural habitat.
The Bison walked through their campsite. Did you not see the same video.
That campground is in the bison’s natural habitat.
Nobody can out run a Bison.
That ton critter can move darn quick.
Have them here in OK.
Quick and they can block a road pretty good.
Lucky to be alive.