Amazing Animals

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Across
  1. 4. these are all over fish and snakes
  2. 6. the outside layer of an animal
  3. 8. birds use these to fly
  4. 9. birds have these
  5. 12. fish use these to breathe
  6. 13. snakes do not have these
Down
  1. 1. these animals have hair or fur
  2. 2. can live on land or in water but need to stay wet
  3. 3. these animals have wings
  4. 5. these animals live on land and have scales
  5. 7. they live under water
  6. 9. most mammals have this type of hair on their bodies
  7. 10. birds, fish, and amphibians all lay these
  8. 11. birds can do this, but fish can not