Park rangers responded to a report of a man harassing a herd of bison and kicking a bison in the leg.
The suspect's vehicle was found near the West Entrance and he was stopped in West Yellowstone, Montana.
The man was found injured and transported to a hospital for treatment, but details on the nature of his injuries have not been released.
According to the National Park Service, the man got dangerously close to a bison near Idaho Falls and was injured after kicking a bison.
The man was taken into custody on charges of "being under the influence of alcohol to the extent of endangering himself, disorderly conduct likely to create or maintain a dangerous condition, approaching wildlife and disturbing wildlife."
