Across
- 3. animals that crawl or creep walking
- 7. maybe, perhaps
- 8. happen or take place
- 10. to guess
- 12. animals that feed with their own milk
- 13. forebear (father’s father’s father’s..)
- 16. animals without backbones
- 17. to decide
- 20. some (accountable things)
Down
- 1. to success
- 2. no longer exist and will never again live on the earth.
- 4. Harden; convert it into stone
- 5. people who get in without permission
- 6. scientists who study fossils
- 9. wet, spongy land
- 11. animals that lives part of its live on land and part of its life in water.
- 14. animals with backbones
- 15. to maintain and reserve
- 18. bring in without permission, invitation, or welcome
- 19. not deep