Across
- 2. the name of the ship
- 3. scientist who proposed these ideas
- 7. allows animals to blend in
- 9. the name of the islands
- 11. a trait that we call a variation
- 12. the study of DNA
Down
- 1. the ocean the islands are in
- 4. animals change with the environment
- 5. the part of an embryo that turns into the ear
- 6. what was different about the birds
- 8. changes to animal traits
- 10. parts of DNA that can switch traits
- 13. the theory that animals are related