U is for Uinta Ground Squirrels
These ground squirrels hibernate for most of their lives. They spend most of the year sleeping in their underground homes and only come out for a few months in the summer.
Did You Know?
There are more people hurt by bison than by bears each year in Yellowstone. Park regulations state that visitors must stay at least 25 yards away from bison or elk and 100 yards away from bears.