Related Clues:
- Upstream swimmer
- ''Animal House'' character
- Riverbank burrower
- Marine fish prized for its roe
- Atlantic catch
- Playful sea mammal
- A source of roe
- Bewhiskered swimmer
- River critter
- Playful sea creature
- Thick fur
- Aquatic fun lover
- Tobogganing mammal
- Animal that eats while floating on its back
- Musk creator