Bison bulls can weigh in excess of 2000lbs, and the heads and forequarters are massive. Both sexes have short, curved horns that can grow up to 2 ft long, which they use in fighting for status ...

About 20 calves are expected to be born this season. The herd is now made up of 23 bison cows, two bulls, and three yearlings born last year, Fermilab noted. Fermilab rotates the bison bulls every ...

WAPITI, Wyo. -- A Colorado man required medical treatment at a hospital after he was gored by a bull bison at Yellowstone National Park in Wyoming, officials said. The 34-year-old man was walking ...