Man approached bison too closely in Yellowstone National Park and was injured – Yellowstone National Park (U.S National Park ServiceMan accused of kicking bison at Yellowstone National Park is injured by animal and then arrested on alcohol charge CBS NewsMan Accused Of Drunk-Kicking Bison Sets Off Yellowstone’s Animal Attack Season Cowboy State DailyIdaho Falls man kicks Yellowstone bison and goes to jail, say park officials East Idaho News