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 eat humans fiddler crabs eat other smaller crabs
by rubbing their big claw on there body
Ghost crabs? Well that depense if it is a dead fiddler crab so it would be the same/
yes they are
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?
no they are not
fiddler crabs drink fresh water.
you kill the fiddler crab
They're in the crustation or the crabs group.
crabs are nocturnal