Aren Bison becoming extinct?
Unregulated killing of bison led to the many millions of animals being reduced to no more than 1,500 individuals in the mid to late 1800s. Legal protection of the bison in Yellowstone Park, the establishment of preserves like the National Bison Refuge in Montana, along with individuals raising bison on their own land, have helped restore the bison to over 350,000 animals. Current estimates place the size of the U.S. herd at 270,000 animals, with most of the production occuring on private ranches.
