Marine Crossword Puzzle

Advanced Ocean-themed Crossword Puzzle

1. The periodic change in the level of the sea
2. A species of flattened, burrowing sea urchin
3. Organism that can sting with its tentacles
4. Sea-dwelling organism with a flattened body and wing-like pectoral fins
5. Aquatic vertebrate with fins and gills
6. Cephalopod with a large head and eight arms that can regenerate
7. Large marine mammal that may have a dorsal fin and a long, streamlined body
8. A small, shrimp-like organism that is a key part of the ocean's food web
9. A crustacean with two pairs of claws and a short, broad body
10. Aquatic predator with a cartilaginous skeleton and multiple rows of sharp teeth
10. A small, crustacean with a long body and legs
11. A species of fish with an elongated snout and a distinctive curled tail, found in shallow tropical and temperate waters
12. A creature with a long, slender body and no fins that can be found in the ocean
13. A stony, reef-building animal found in warm waters
14. Sea creature that can regenerate lost arms
15. A rocky or coral formation near the surface of the sea that is exposed at low tide
16. A large body of salt water that covers much of the Earth's surface
17. A large, marine crustacean with a hard, spiny shell and two claws
18. Sean creature that communicates using a variety of clicks and whistles
19. A fish that can puff up its body to make itself look larger to ward off predators