Possible Clues:

• Badlands herd member
• Beast on Wyoming's flag
• Beefalo's parent
• Yellowstone grazers
• Plains figure replaced by Monticello on U.S. nickels
• Large animal like that filling waste basket
• Hoofed animal with hump, large head and short horns
• U.S. national mammal
• Cause of some Yellowstone traffic jams
• A baby one is called a red dog