Hormones are running high in Yellowstone National Park as bison enter their mating season, known as the rut. Males are particularly prone to aggression as they compete for dominance, so it's more important than ever to make sure you give them plenty of space, whether you're traveling by foot or car.
A video compilation posted last week via Instagram account TouronsOfYellowstone (which you can see below) shows exactly what can happen to even careful drivers during this time of year if they encounter a particularly highly-strung male.
