X is for Fox (Only if it is spelled backwards)
I know. Fox starts with 'F'. I just couldn't find a Yellowstone animal whose name started with 'X' so I had to cheat. Sorry about that!
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.