Ocean Oddities

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Across
  1. 4. Flat sea creature with wing-like fins
  2. 5. Color-changing master of disguise with 8 arms
  3. 7. Jet-propelled cephalopod with 10 tentacles
  4. 8. Tiny ocean horse that swims upright
  5. 10. Sideways-walking crustacean with claws
Down
  1. 1. Drifting stinger with no brain
  2. 2. Prickly little sea creature with spines
  3. 3. Gentle giant that sings in the ocean
  4. 6. Playful marine mammal that barks on land
  5. 9. Black and white predator called a killer