Maybe it’s time to close Yellowstone National Park again as some tourists are clearly not ready for the responsibility that comes with a visit. Elderly Tourists Get Too Close To Yellowstone BisonIn the latest video out of Yellowstone National Park, we saw an elderly tourist get tossed by a bison even though the tourist didn't appear to do anything wrong, other than dodge right instead of left. In a video from a few years ago, an elderly couple showed us how to improperly behave around wildlife. These two bison are clearly ready to fight and if their attention had turned to the elderly couple it could have ended in tragedy. Recommendations at National Parks in regards to wildlife state that visitors should stay at least 25 yards away from bison and other large mammals.