Seashore Crossword

Advanced Ocean-themed Crossword Puzzle

1. A type of marine invertebrate that builds a calcium carbonate structure
1. A creature that can be found on seashores and in shallow waters
2. Aquatic creature with a flat body and a long, whip-like tail
3. A marine creature that can inflate its body when it feels threatened
4. Marine mammal often seen leaping above the surface of the water
5. Sea creature that can regenerate lost arms
6. The submerged edge of a rock or sandbar that is exposed at low tide
7. The periodic change in the level of the sea
8. Creature of the sea with a head and eight arms that can change color
9. A large, marine crustacean with a hard, spiny shell and two claws
10. Large marine mammal that may have a dorsal fin and a long, streamlined body
11. A common seafood item with a distinct taste and texture
12. A slippery fish with a long, serpentine body and no scales
13. Aquatic animal with a backbone
14. Apex predator found in all the world's oceans, ranging from the tropics to the coldest waters
15. A large body of salt water that covers much of the Earth's surface
16. A species of flattened, burrowing sea urchin
17. A fish with an elongated snout and a long, coiled tail, found in shallow tropical and temperate seas
18. A type of planktonic organism which is an important source of food for whales, seals, fish, and seabirds
19. Aquatic animal with a bell-shaped body and tentacles