Because of the motions of their appendages. The movements are similar to someone playing a violin.
The scientific name for the fiddler crab is "Uca Pugnax".
by rubbing their big claw on there body
No, Hermit Crabs and Fiddler crabs require two different environments. The Hermit Crab would drown in the water a Fiddler Crab needs. You can always ask your local pet store if there is any way possible though. Some hermit crabs live on land others live in water even land hermit need two enter salt water , fiddler crabs are brackish or fresh hermit crabs can't breathe in those environments
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
They're in the crustation or the crabs group.
crabs are nocturnal
you kill the fiddler crab