KnowraFiddler crabLinked fromLinked fromThe 4 pages that link to Fiddler crab, each with the reason it gives.All 4Broader topic 3Compared with 1BrachyuraBroader topic: Its claw displays how brachyuran anatomy can become specialized for signaling and competition.ChelipedBroader topic: Its enlarged cheliped is used in signaling and contests rather than ordinary feeding alone.Mangrove crabBroader topic: Fiddler crabs graze on surface algae and organic material on exposed mangrove mud.