Reptile Crossword

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Across
  1. 3. This structure helps reptiles rip through the shell to hatch out of their eggs
  2. 6. The dorsal surface of a turtle shell
  3. 7. Sound male alligators make during mating
  4. 9. Pit-like organs in the roof of a snakes mouth
  5. 11. Rattlesnakes use this type of venom to attack red blood cells of their prey
  6. 13. This part of the reptile brain is enlarged and controls muscle movement as well as interpreting sensory information
  7. 15. Type of movement used by desert snakes to minimize contact with hot sand
  8. 20. The ventral surface of a turtle shell
  9. 21. Islands where tuataras are found (two words)
  10. 22. Reptiles lay this kind of egg
Down
  1. 1. Snakes and lizards have this type of skull with moveable joints for consuming large prey
  2. 2. Most reptiles have a heart with this many chambers
  3. 4. The texture of a reptile egg shell
  4. 5. Terrapins are often found in this type of water
  5. 8. Circulatory loop that delivers deoxygenated blood back to the lungs to get oxygen
  6. 10. This thin membrane is a scale that covers the eyes in snakes to protect their cornea
  7. 12. Copperheads use this type of venom to attack the nervous system of their prey
  8. 14. This era is nicknamed the "Age of Reptiles"
  9. 16. These are unique double copulatory organs found in reptiles
  10. 17. This is the largest turtle species
  11. 18. The shape of a snakes tongue
  12. 19. Circulatory loop that delivers oxygenated blood to the organs around the body