A Yellowstone bison can run at around 35 miles an hour, and that speed is now at the center of a child bison encounter in Yellowstone that has drawn fresh attention to how quickly a close approach can turn dangerous. The National Park Service says bison have injured more people in Yellowstone than any other animal.
That warning matters because the animal that looks slow and steady can move faster than many people expect. Usain Bolt topped out at about 27.8 miles an hour in the 100-meter world record run, while a bull bison can weigh up to a ton. The park asks visitors to stay at least 25 yards back from bison, a distance that is easy to underestimate when a large animal seems calm.
In one year, a review of Yellowstone injuries found five cases in which people failed to keep that required distance from bison. Three of those people were hurt while taking photographs only a few feet from the animals. That is the pattern behind many of the park’s warnings: visitors see what the article calls a “fluffy cow,” then treat a wild bison like a harmless one.
The mistake is built into the animal’s appearance. Bison often stand still, graze and let visitors think the risk is low, but the danger starts when people step inside the distance the animal will tolerate. The safer move is simple: keep well back and use the long lens. That is especially important in Yellowstone, where the park says bison injure more people than any other animal.
The unresolved part of the child encounter is the one detail the public still does not have: how close the child got before the moment became a headline. But the broader lesson is already clear. In Yellowstone, a bison is not scenery. It is a fast, heavy animal that can close the gap in seconds, and the park’s 25-yard rule exists because a few steps too many can be enough.
