In brief
Last week a massive bison in Yellowstone’s Bridge Bay Campground rammed a 65‑year‑old man, sending him flying. The incident, captured on a phone, has gone viral and sparked a renewed push for park safety rules. Trained researchers noted the bison’s mating season as a key factor, urging visitors to stay at least 25 yards away and never chase or photograph the animal. The man survived serious injuries and was treated at a local hospital. Authorities stress the power of wildlife and the importance of respectful distance while exploring the park.
What Happened?
A 65‑year‑old man named Carl Isom‑McDaniel was hit by a massive bison (about 2,000 lb) in Yellowstone’s Bridge Bay Campground. The animal rammed him with its head and tossed him several metres into the air, landing on his side and leaving him in pain.
Video of the event, captured by a local photographer, quickly spread across social media, surprising many visitors who think bison are just “grandfather‑friendly” animals.
Why Bison Are Power‑houses
Bison can run up to 30 mph—three times faster than the average human—making them unpredictable. Over the summer, bulls reach peak mating season, boosting testosterone levels and aggression. Scientists advise that, especially around July, these animals are much more unpredictable.
Safety Tips for Future Adventurers
- Keep at least 25 yards (23 m) from any bison.
- Never approach or get too close, even if the animal looks calm.
- If you see a bison nearby, walk slowly away—never run.
- Always stay inside structures or vehicles if you’re being chased by a bison.
The Bigger Picture
Yellowstone receives almost 60% of its visitors during June, July, and August. With dense crowds and high wildlife activity, experts emphasize self‑care and respect for the animals’ space.
If you plan a trip, research the wildlife behavior of the season, follow park guidelines, and always stay calm in the face of thrilling (but dangerous) nature.



