The bison in Yellowstone National Park that seriously injured a man in a viral attack last week will not be euthanized, despite the shocking encounter.
Yellowstone officials have decided to leave the wild animal in the park, without taking any management action against the bull.
The decision comes after the bison charged Carl Isom-McDaniel, leaving the grandfather with multiple broken bones that required surgery.
The frightening video, captured by a wildlife photographer, spread widely online after the bison tossed McDaniel into the air before standing over him.
The photographer, who stopped filming to help drive the bison away and render aid, said neither McDaniel nor his grandson appeared to provoke the animal.
The bull had already charged a group of teenagers before the grandfather and his grandson unknowingly encountered it while walking through the campground.
The pair attempted to leave after noticing the bison become active, but the animal ultimately focused its attention on them, with the photographer saying "for some reason, [the bison] had it in his head he was going to attack those two."
Since the attack, McDaniel has undergone surgery and is recovering from his injuries, with his first concern being the safety of his grandson, who fortunately escaped without harm.
Yellowstone National Park advises visitors to remain at least 25 yards away from bison, which can weigh up to 2,000 pounds and run as fast as 30 mph.
Bull bison can become especially aggressive during the annual mating season, and many visitors have shared their reactions to the incident on social media, expressing shock and concern for the grandfather's safety.




