Across
- 3. – Intelligent marine mammal
- 4. – Drifting ocean micro-life
- 6. – Shell-bearing sea swimmer
- 8. – Eight-armed hunter
- 10. – Gentle seagrass grazer
- 11. – Reef-building organism
- 14. – Five-armed echinoderm
- 15. – Gelatinous stinger
Down
- 1. – Clinging shell creature
- 2. – Tiny crustacean whales eat
- 5. – Tentacled reef dweller
- 7. – Eel with a fearsome bite
- 9. – Male here carries young
- 12. – Clawed crustacean
- 13. – Long-billed sport fish