A 65-year-old man remains hospitalized following a July 10, 2026, incident at Yellowstone National Park where he was charged and tossed into the air by a bull bison. The attack occurred at the Bridge Bay Campground near Lake Yellowstone, according to park officials. The victim, who suffered a broken leg in multiple places, required surgery after the encounter.
The Mechanics of the Yellowstone Bison Attack
Video footage captured by visitor Mike MacLeod shows the man standing near the animal with his grandchild before the bison suddenly stood up and pursued them into a wooded area. The bull bison eventually caught the man and launched him into the air. While the man sustained serious injuries, the grandchild was apparently unharmed, according to reports provided to USA TODAY.
Did you know?
Bison are deceptively fast. Despite their massive size—up to 2,000 pounds—they can reach speeds of 35 mph, making them significantly faster than the average human.
Risk Factors During Bison Mating Season
This incident occurred during the “rut,” or mating season, which spans from June through September in Yellowstone. During this period, bull bison become notably more aggressive and unpredictable. MacLeod, who witnessed the event, told Cowboy State Daily that the same bison had reportedly charged at a group of children earlier, indicating a heightened state of aggression.
MacLeod, a former U.S. He described the victim as remaining “jovial” and attempting to make light of his injuries despite being in significant pain. The man’s family confirmed to NBC News that he faces a long recovery process.
Future Trends and Wildlife Safety
As Yellowstone manages the nation’s largest public bison herd, the frequency of human-wildlife interactions remains a concern for park management. Officials emphasize that wildlife can appear calm while remaining dangerous, and they urge visitors to maintain significant distance at all times to avoid life-threatening encounters.
Frequently Asked Questions
How fast can a bison run?
Bison can run up to 35 mph, which is faster than most humans can sprint, making it impossible to outrun them if they charge.
Why are bison more aggressive in the summer?
June through September is the “rut,” or mating season. During these months, bull bison are more territorial, unpredictable, and prone to charging.
What should I do if I see a bison near a trail?
Give the animal plenty of space.
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