Yellowstone National Park is the only destination in the lower 48 states to have boasted free-ranging ... park. Bison feed mostly on grasses and grass-like plants, and during the winter they ...

But it’s also home to some seriously tough animals like the bison! These big, shaggy creatures are like a symbol of the park, and watching them handle the brutal winter is just incredible.

If it wasn’t for a hidden herd in the deepest reaches of this National Park, bison would have been wiped out in the late 1800s. Today, thousands of them thrive.