1. Region between the high and low tide marks where crabs inhabit
2. Small claws on the end of a crab's legs
3. Pair of claws on a crab that move sideways to hold and manipulate objects
4. Crab that lives inside empty seashells for protection
5. Aquatic plants found in coastal areas where crabs often dwell
6. Solid, natural material that serves as a habitat for some crab species
7. Crab's visual organs
8. Vast body of saltwater inhabited by various species of crab
9. Early stage form of a crab, hatched from eggs
10. Hard, pointed appendages of a crab used for capturing prey
11. Breathing organs in crabs that extract oxygen from water
12. Sandy shore near a body of water where crabs often scuttle
13. Long, jointed limbs of a crab used for walking and swimming
14. Hard outer covering that protects a crab's body
14. Grains of eroded rock and shell that form sandy beaches where crabs often reside
15. Small, aquatic crustaceans that crabs prey upon
16. Marine mollusk with a hard shell, often preyed upon by crabs
17. Hill or ridge of sand by the seaside where crabs may hide
18. An animal that hunts and feeds on other organisms, often crabs
19. Process of shedding an old exoskeleton and growing a new one
20. A hole dug in the ground by a crab as a shelter