National Park Service Shares Tongue-in-Cheek Petting Chart

Taking an opportunity to educate visitors while getting a laugh, the Yellowstone National Park officials shared a chart of what not to do when approaching the park's largest animal — the bison.

As is common each summer, several videos of tourists getting to close to bison and other wildlife in the park are going viral. While the park service apparently wanted to get a laugh out of visitors, rangers still take staying away from wildlife very seriously.

Park rangers remind visitors to stay at least 100 feet away from bears and wolves and at least 25 feet away from other animals.