Across
- 6. birds of ______, also known as raptors
- 7. control their own body temperature
- 8. warm-blooded with hair/fur
- 9. cold-blooded with scales and fins
- 10. animal without a backbone
- 13. warm-blooded with feathers
- 15. mammals have live _______.
- 16. cold-blooded with dry scales
Down
- 1. animal with a backbone
- 2. a frog is first this swimming creature
- 3. Live "Two Lives"
- 4. use their environment to control body temperature
- 5. fish use ______ to swim
- 11. birds are born after hatching from an _____.
- 12. alligators and crocs will often _____ in the sun to warm up
- 14. have wings but they are actually mammals