and retreating to sheltered valleys in the winter, eating the limited plants that remain. The larger animals, such as bison, were seen to do more or less the opposite: venturing out to find food ...

Watch: These adorable bison (located at the Buffalo Zoo in New York) are living their best lives in a winter wonderland!

Here are the best Yellowstone restaurants so you'll know exactly where to eat on your epic Yellowstone National Park vacation ...