| Answer | Crossword Clue |
|---|---|
| DOLPHIN | Sea mammal. |
| DOLPHIN | Sea mammal |
| ORC | Sea mammal |
| SEAL | Sea mammal |
| FURSEAL | Sea mammal |
| MANATEE | Sea mammal |
| PORPOISE | Sea mammal. |
| MANATEE | Sea mammal. |
| OTTER | Sea mammal |
| OTTER | Endangered sea mammal |
| OTTER | Playful sea mammal |
| WHALE | Giant sea mammal |
| NARWHAL | Tusked sea mammal |
| HARPSEAL | Common arctic sea mammal |
| SEAL | Mammal of the sea. |
| DUGONG | Whalelike mammal, the sea cow. |
| MANATEE | Aquatic mammal, the sea cow. |
