If you needed another reason to keep your foot off the gas around wildlife, Yellowstone just handed you one. A 65-year-old man was hospitalized this week after a bull bison launched him into the air at Bridge Bay Campground, and by most accounts, he did everything right.
The man was walking with his grandson on Friday evening, keeping what they believed was a safe distance from an already agitated bison. According to Cowboy State Daily, they were more than 100 yards away when a passing white pickup truck spooked the animal into charging. That’s the part that should catch a car guy’s attention. It wasn’t a tourist creeping in for a selfie or ignoring a ranger’s warning. It was a truck, minding its own business on a park road, that flipped the switch on an already irritable 2,000-pound animal.
Bozeman photographer Mike MacLeod happened to be filming the bison at the time, hoping to catch some dramatic footage of the animal having what he described as a fit. He got more than he bargained for. MacLeod said the bison was angry, agitated and charging anything and everything, and that nobody involved was doing anything wrong.
That’s a rare thing to hear out of Yellowstone, where most bison run-ins involve someone doing something a park ranger would call, politely, unwise.
The footage shows the bison hook the man with its horn and send him tumbling. He came down hard on his side, with significant injuries to the leg he landed on, while his grandson escaped untouched. It’s the kind of video that’s hard to watch, but it’s also a solid reminder that these animals don’t play by the rules we assume they do.
The Truck That Started It All
We don’t know the make or model, and honestly, it doesn’t matter. What matters is that a vehicle simply driving past was enough to tip an already wound-up bull over the edge. Bison spook easily during certain times of year, and a passing engine, a glint of chrome, or even a slamming door can be the trigger.
If you’re rolling through Yellowstone this summer, maybe ease off the accelerator a little extra when there’s a bull anywhere near the road. Your truck doesn’t need to prove anything to a bison.
Why the Bulls Are So Wound Up Right Now
This is bison rut season, which runs roughly from late June through August depending on who you ask. During this stretch, bulls are flooded with testosterone and locked into competition mode, fighting rivals and losing patience for anything else, including cars and campers.
Think of it like a guy who just got cut off in traffic and is looking for any excuse to lay on the horn. Except this “horn” is attached to a half-ton of muscle that can hit 35 miles per hour.
Second Incident of the Year, and a Reminder Worth Repeating
This marks Yellowstone’s second bison-related injury of 2026, following an incident involving a 12-year-old near Mud Volcano in late June.
Neither case involved anyone acting carelessly, which is the real headline here. A hundred yards used to sound like plenty of distance. During the rut, it apparently isn’t.