Carl McDaniel, 65, from Washington state suffered broken bones after he was charged by a 2,000lb (900kg) bull during a visit to Yellowstone with his grandson on Friday. The encounter was recorded by Mike MacLeod, a professional photographer, who said the animal was 'agitated, pissed off and charging anything and everything'

• Yellowstone tourist tossed 8ft in air by bison says attack could have been worse

• Man tossed into the air by ‘agitated’ bull bison was grandfather visiting Yellowstone with grandson