The hermit crabs first pair of legs are their claws which they use for drinking, eating, and defense. The second, third, and fourth pair are for walking. The fith - tenth are for holding it's abomen inside it's shell.
by rubbing their big claw on there body
yes they are
Ghost crabs? Well that depense if it is a dead fiddler crab so it would be the same/
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?
no they are not
no
The question might presume a fact not in evidence: fiddler crabs are not chordates (phylum chordata, with internal skeletons) but instead are phylum arthropoda, characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.
They're in the crustation or the crabs group.
crabs are nocturnal
you kill the fiddler crab
fiddler crabs drink fresh water.