It is a green hermit crab with blue claws.
They can't. They will die
hermit crabs use their claws to grab food
A Penis Crab.
Yes, it will grow back.The body you see is actually a shell that the hermit crab sheds to grow. you can get all your hermit crab info on HERMIT-CRABS.com
They don't bite they can pinch you with their claws though.
No, they both have two claws. One large one and one small one.
it picks the food up with its claws then puts it in its mouth and swallows
It's pincers/ claws
A long clawed hermit crab protects itself by hiding in it's protective shell or fighting back with its claws, or by putting its body in its hard shell.
They live in the abandoned shells of other creatures, and change them as they grow. The asymmetric size of the hermit crabs claws is remarkable.
there are many species of hermit crab which one do you mean?the common hermit crabs species is bernhardus