G is for Grizzly Bear
When you hike in Yellowstone it is smart to wear a bell or to sing while walking. That way if there is a grizzly bear around, he will know you are coming and won't be startled.
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.