Water World

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Across
  1. 2. You find one of these on a fish's back.
  2. 6. Sharks have up to 300 of these.
  3. 8. What dolphins use to breathe.
  4. 9. Crabs and some land animals have these.
  5. 12. You can find this on the beach.
  6. 13. This fish has very soft bones.
Down
  1. 1. Seals and turtles use these to swim.
  2. 3. What sea turtles like to eat.
  3. 4. A clever creature with lots of legs.
  4. 5. These cover a fish's skin.
  5. 7. The visitor in Shaun the sheep.
  6. 10. The biggest animal ever.
  7. 11. The part of the ocean where the golbin shark lives.