A full-grown bull bison can weigh weigh up to 2,000 pounds. Adult females weigh about half as much.
Jim Peaco, NPS
A California woman was gored several times by a bison June 25 in Yellowstone National Park after apparently approaching the animal to take its photo.
The 72-year-old walked within 10 feet of the bison several times near her campsite at Bridge Bay Campground, according to a park news release. Park regulations require visitors to remain 25 yards from bison and elk.
Rangers provided immediate medical care to the woman who was flown via helicopter to