Advanced Ocean-themed Crossword Puzzle
 
Listed Items
- 1.  A type of fish that is capable of inflating its body to deter predators
- 2.  Aquatic predator with a cartilaginous skeleton and multiple rows of sharp teeth
- 3.  A type of planktonic organism which is an important source of food for whales, seals, fish, and seabirds
- 4.  A large body of saline water that is partially or completely surrounded by land
- 5.  Marine mammal often seen leaping above the surface of the water
- 6.  Marine invertebrate with five arms and lives on the sea floor
- 7.  Organism with scales, fins, and a lateral line
- 8.  A small marine fish with a head and neck resembling a horse
- 8.  Underwater creature that has a diamond-shaped body and a venomous spine
- 9.  A creature with a long, slender body and no fins that can be found in the ocean
- 10. Cephalopod with a large head and eight arms that can regenerate
- 11. A red-shelled, clawed invertebrate with a long tail
- 12. The submerged edge of a rock or sandbar that is exposed at low tide
- 13. A type of shellfish with a long, thin body
- 14. Marine creature with a soft, gelatinous body
- 15. A creature with a hard outer shell and five pairs of legs
- 15. A type of sea life made up of tiny polyps which secrete a hard calcium carbonate exoskeleton
- 16. Large marine mammal that may have a dorsal fin and a long, streamlined body
- 17. The cyclic change in the depth of the ocean