Studies conducted in the last 20 years suggest that the bison population at Yellowstone National Park includes two separate ...

Bison lived for the past 10,000 years ... They utilized tools such as anthropogenic (human-made) fire to burn small areas of prairie grasses, so that those grasses would grow back with more ...

Be sure to check the website for trail conditions and to reserve space on the tour bus, which takes you past the bison herd and to an overlook with prime prairie viewing ... this preserve was made for ...

The Pittsburgh Zoo and American Prairie, which provided the bison, are part of the Association of Zoos & Aquariums’ Bison Saving Animals from Extinction (SAFE) program, which is working to share ...

Prairie species persist on small islands of grass that are being steadily eroded at the edges by the same global and colonial forces that cleared the plains of the bison, and bison hunting ...