From the archive record
The motion of the feeding claws on both males and females resembles a fiddling motion therefore they are known as fiddler crab and they mainly feed by scraping the surface sediments on the mud or marshy area of the beach. Fiddler crabs hide on the mudflat to protect and defend themselves from aquatic predators. They feed with their smaller claw to pick up the chunk of sediments from the ground to mouth making it a detritivores (obtain nutrients by consuming, decomposing plant and animal parts as well as feces). A fiddler crab, also known as a calling crab, may be any of approximately 100 species of semi-terrestrial marine crabs which make up the genus Uca. As members of the family Ocypodidae, fiddler crabs are most closely related to the ghost crabs of the genus Ocypode. This entire group