Chela
The scientific name for the crab claw is chela. It is a specialized limb that helps crabs to grasp and manipulate objects, including their food.
yes
by rubbing their big claw on there body
No.
red clawed crabs eat best when no one is around or watching them (at night).
they start to chase each other and then claw each other
It will drasticly reduce their life they are semi aquatic needing both dry lanf and water
Hermit crabs usually , if not always, have one large claw and one smaller claw.
They dip their big claw in the water and drink the drops on the claw, they do that over and over again until they are full.
In most cases yes, unless they lost their claw due to stress or sickness
its called a pincer
No, Because if you do they lose a leg. But if you pick up a male they will lose a leg and a claw but the claw will grow back not the legs