bison

The American Prairie Reserve organization is trying to buy back the sea of grass, one ranch at a time.

Bison have long been a key part of US culture, groups say.

Sun-bleached bones in Yellowstone reveal the history of the park.

Can America's wild bison make a comeback?

Buffalos in South Africa appear to give birth to more males during the rainy season, and scientists think certain genes are responsible

One-quarter of the world's largest known migratory mammals no longer migrate, according to a new study.

The quietest bison bulls score the most mates and sire the most offspring.

Changes in atmosphere's chemistry show up in wolves' bones.

Prey animals are not necessarily hard-wired to fear their enemies.