Taking selfies dangerously close to wild animals, such as bison, can pose significant risks to both the individual taking the photo and the animals themselves.
Park regulations require that people stay at least 25 yards (23 m) away from all wildlife (including bison, elk and deer) and at least 100 yards (91 m) away from bears and wolves
Yellowstone National Park, like many other wildlife conservation areas, has guidelines and rules in place to ensure the safety of both visitors and the park’s ecosystem.