Yellowstone is home to nearly 5,000 bison, which must contend with wolves in the winter, and wolves and grizzly bears during ...

When he returned to the site, he found the gate locks had been cut and changed, and there were blood spots on the ground where the bison had apparently been killed, he said. Four of his original ...

San Francisco 's Golden Gate Park has long featured a herd of bison in their own fenced-in paddock. Apparently Yahoo CEO Marissa Mayer and Yammer CEO David Sacks are fans. They and their spouses ...

Several bison were killed in southwest Montana when a semitruck crashed into a herd on a highway, officials said. It happened after dark about 6:30 p.m. on Wednesday, Dec. 28 on U.S. Highway 191 ...