This buffalo was one huge mammal, about 9 feet, maybe 10. Yellowstone has the largest buffalo in the world. This one charged several times, when they got within 2 feet to take a cell phone pic. We need to respect our environment, and our wildlife, if he hurt someone it is a death sentence for him. This goes on more and more, and one tourist actually told me it was a petting zoo, that was what she really thought. She said the animals are not allowed to leave the park. I think we need to do a better job educating the public.