Grandad, 80, 'flipped like a ragdoll' in horror bison attack as helpless bystanders watch on

The 80-year-old man was visiting Yellowstone National Park in the US with his grandson when the 2,000lb bull bison charged at him and launched him roughly eight feet into the air, witnesses say The 80-year-old man was visiting Yellowstone National Park in the US with his grandson when the 2,000lb bull bison charged at him and launched him roughly eight feet into the air, witnesses say