Sea creatures

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Across
  1. 3. has 8 tentacles
  2. 5. large sea mammal
  3. 6. the most famous underwater predator.
  4. 7. layer where no sunlight reaches
  5. 9. creature that can squirt ink
  6. 12. has lots of tentacles that can sting
  7. 13. a type of underwater plant
  8. 14. star shaped animal
Down
  1. 1. a category of animal that has fins, gills and scales
  2. 2. animal that is friendly with people, but not with fish
  3. 4. has a hard shell
  4. 6. top layer, or zone, of the ocean
  5. 8. middle layer of the ocean
  6. 10. another name for an ocean
  7. 11. creature that walks sideways