where do hermit crabs get their shells from
Hermit crab Most species have long, spirally curved abdomens, which are soft, unlike the hard, calcified abdomens seen in related crustaceans. The vulnerable abdomen is protected from predators by a salvaged empty seashell carried by the hermit crab, into which its whole body can retract.[3] Most frequently, hermit crabs use the shells of sea snails (although the shells of bivalves and scaphopods and even hollow pieces of wood and stone are used by some species).[4] The tip of the hermit crab's abdomen is adapted to clasp strongly onto the columella of the snail shell.[5] Most hermit crabs are nocturnal.
Dungeness crab The Dungeness crab, Metacarcinus magister (the naming convention recognized by WoRMS) or Cancer magister (the naming convention recognized by ITIS), is a species of crab that inhabits eelgrass beds and water bottoms on the west coast of North America. It typically grows to 20 cm (7.9 in) across the carapace and is a popular seafood prized for its sweet and tender flesh. Its common name comes from the port of Dungeness, Washington.