1. Seasonal movement of whales

1. Related to the oceans

2. Whale's layer of fat

3. Related to the open sea

4. Cetacean known for its intelligence

5. Element necessary for whale's respiration

6. Person exploring underwater

7. Whale known for its size

8. Spray of water expelled by a whale

9. Warm-blooded vertebrate animal

10. Ripples on the water surface

11. Rudder-like appendage of a whale

12. Groups of whales

13. Opening on the top of a whale's head

13. Whale's feeding structure

14. Shoreline where whales sometimes strand

15. Whale's spectacular leap out of the water

16. Black and white marine mammal

17. Vast body of saltwater

18. Plant-like organism found in the sea