Across
- 2. Pinnipedia that has downward pointing tusks
- 5. Pinnipedia that sits on their stomach
- 8. egg when born
- 10. mammal located in the waters of the northern Pacific Ocean
- 11. provides buoyancy for sharks
- 14. blue whale
- 19. to help birds excrete salt
- 23. movement of a species
- 25. live birth
- 30. Osteichthyes
- 31. bony fish
- 32. odonticeti
- 34. lizards, turtles, etc.
- 35. killer whale
- 36. used to detect vibrations in water
Down
- 1. white marine bear
- 3. internally generates heat
- 4. small mammal located in the waters of South America
- 6. birds
- 7. seals, walrus, etc.
- 9. electroreceptors
- 11. egg hatches inside mother
- 12. cartilaginous fish
- 13. cells that carry oxygen to the muscles
- 15. Pinnipedia that walks on flippers
- 16. eats meat
- 17. fish: Chondrichthyes
- 18. Agnatha
- 20. jawless creatures
- 21. provides buoyancy in bony fish
- 22. externally generates heat
- 24. slows a whales heart rate
- 26. manatees
- 27. Sirenia
- 28. tool using sound to determine location
- 29. focuses sound from echolocation
- 33. Mysticeti