no mold on crab shells is not bad for you but it is bad for the crab
A crab that lives in the shells of other shell fish is called a hermit crab.
It is like a bone that protects the crab.
They probably come out of their shells to do it, but no crab has reproduced in captivity.
A hermit crab.
hard shells
no not usually
No
Chitin in crab and lobster shells can be used to make contact lenses and dis-solvable stitches.
Well no, crab shells can't be tiles. Well you may strategically place your terrible claws upon my posterior and kiss it repeatedly!
A hermit crab lives in the empty shells of other sea creatures. As it grows it moves on to bigger shells.
a hermit crab can go all the way out of its shell to switch shells