Man reportedly seriously injured by the bison, described as ‘agitated’ and ‘charging anything’ by photographer An enraged, 2,000lb (900kg) bull bison hooked a tourist and tossed him 8ft into the air at a campsite in Wyoming’s Yellowstone national park on Friday – an encounter captured by a professional photographer who said the animal was “agitated, pissed off and charging anything and everything”. The tourist was reported to be seriously injured by the male bison while walking with his grandson through the Bridge Bay campground, south of Fishing Bridge.