Ocean Crossword Puzzle

Advanced Ocean-themed Crossword Puzzle

1. Apex predator found in all the world's oceans, ranging from the tropics to the coldest waters
2. A fish with an elongated snout and a long, coiled tail, found in shallow tropical and temperate seas
3. A creature with a hard outer shell and five pairs of legs
3. A stony, reef-building animal found in warm waters
4. A fish that can expand its body by filling it with air or water
5. A species of flattened, burrowing sea urchin
6. Creature of the sea with a head and eight arms that can change color
7. A large body of salt water that covers much of the Earth's surface
8. Sea creature that can regenerate lost arms
9. Aquatic animal with a bell-shaped body and tentacles
10. A small, aquatic creature with a hard exoskeleton
11. Aquatic vertebrate with fins and gills
12. A slippery fish with a long, serpentine body and no scales
13. A rocky or coral formation near the surface of the sea that is exposed at low tide
14. Underwater creature that has a diamond-shaped body and a venomous spine
15. Marine mammal often seen leaping above the surface of the water
16. A sea creature with five pairs of legs and two large claws
17. A small, shrimp-like organism that is a key part of the ocean's food web
18. The periodic change in the level of the sea
19. Large marine mammal that may have a dorsal fin and a long, streamlined body