Across
- 3. mammals and birds are all ______
- 9. a spider is not an ________________
- 10. only mammals can make it to feed their babies
- 11. these animals have feathers and fly
- 13. mammals have hair in their bodies called ____
- 14. the skin of reptiles and fish are called ____
- 15. an animal with no backbone
Down
- 1. dogs, cats, and dolphins are examples of this
- 2. alligators and lizards are examples of this
- 4. instead of mouth birds use _______
- 5. frogs and salamanders are examples of this
- 6. an animal with a backbone
- 7. fish, reptiles, and amphibians are all ______
- 8. the biggest mammal on land is the _________
- 12. these animals have gills and swim underwater
