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Introduction to the giant fiddler crab

The giant fiddler crab (scientific name: Uca major) is a crab belonging to the sand crab family. The biggest feature is that the male crab has a pair of claws of very different sizes. The large claws placed on the chest are like Samurai shield. It will make a dancing movement with its large claws, which is called "tidal" movement. The purpose is to intimidate the enemy or court a mate. In addition, this crab has a pair of protruding eyes like matchsticks, which is very special. They feed on algae and can swallow sediment to ingest organic matter and spit out the inedible parts.