Coconut crab - Birgus latro

The coconut crab is a species of terrestrial also known as the robber crab or palm thief. It is the largest land-living arthropod in the world, and is probably at the upper size limit for terrestrial animals with exoskeletons at current conditions during the Holocene, with a weight up to 4.1 kg. It can grow to up to 1 m in length from leg to leg.