Protection From Enemies

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Across
  1. 3. sharp spines on its body
  2. 6. sharp horns
  3. 8. strong leg muscles
  4. 10. withdraw parts of its body into the shell
  5. 12. detach certain parts of its body
  6. 14. roll itself up
  7. 15. produce bad smell
Down
  1. 1. spurt out black ink
  2. 2. inflate its body that has sharp spines
  3. 4. hard scales
  4. 5. patterns that resemble fake eyes
  5. 7. stings that can release venom
  6. 9. hard shells
  7. 11. live in group
  8. 13. curl itself up