Yes! It is very important that a hermit crab has a shell, it is used to protect their bodies.
It also saves them from getting eaten by other animals! Though sometimes, you find hermit crabs that haven't found a shell that isn't the right size or shape, and instead of a shell, they might carry things like bottle tops. Usually, hermit crabs try to avoid situations like this but, when they urgently need to change into another shell because their current shell is too small, it will be unavoidable.
They aren't; they need a shell.
As hermit crabs grow and increase in size they need to come out of their shell in order to find a larger shell to live in.
a shell...
There shell
Their shell
some crabs, like hermit crabs
What I know of that is hermit crabs will eat snails. However, hermit crabs will often use an empty shell of a sea snail.
break the shell just kiddin
No
Yes, Hermit crabs can only maneuver when they can lift and fit the shell appropriately.
Sometimes it is because they outgrow the old one. They spend most of their lives looking for the perfect shell!
hermit crabs... etc.