Across
- 3. this animal hunts other animals for food
- 6. this is the surname of the man who created the modern classification of living organisms
- 7. only birds have these
- 10. these are animals that give birth to live babies
- 15. the ability to have babies
- 17. A sheep or a monkey is an example of a ... because they eat plant material.
- 18. its a hard shell around an animal's body parts
- 19. these are what fish breathe through
Down
- 1. both fish and reptiles have them
- 2. these feed their babies on milk
- 4. these animals lay eggs
- 5. such animals kill for food
- 8. snails and mussels have this for protection
- 9. these animals have no spine
- 11. these have a dry scaly skin
- 12. these live both on land and in the water
- 13. an ... eats pretty much anything
- 14. only mammals have this (human hair is a variation of this)
- 16. this is what we call grouping, or classifying creatures