Related Clues:

• Mule's sire
• Obstinate one
• Long-eared critter
• "This tastes like ___!"
• Long-eared beast
• Horse's cousin
• It may get paddled
• Mr. Bumble's metaphor for the law
• Zoo animal
• Plains grazer
• Beast with a backpack
• Onager
• ''A Midsummer Night's Dream'' animal
• ''Equus'' member
• Eeyore, e.g.