Related Clues:

• Playful sea creature
• Thick fur
• Aquatic fun lover
• Tobogganing mammal
• Animal that eats while floating on its back
• Musk creator
• Freshwater mammal
• Lutraphobe's fear
• River romper
• Playful creature
• Badger relative
• Endangered sea mammal
• Water weasel
• Lustrous fur
• Eric Stratton's "Animal House" nickname