The coconut crab (Birgus latro), . the robber crab or palm thief, is the largest land-living arthropod, weighing in at up to 9.0 lb/4.1 kg. From leg to leg, it can reach lengths up to 3 ft 3 in/1 m. It comes in a wide variety of colors, going from orange to purple and blue. For more information on the coconut crab and other weird animals, visit
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