Tuvalu’s ranking in area and population is towards the lower end of the scale when compared to the other nations of the world. In size, it is the fourth smallest; the Vatican City, Monaco, and Nauru being smaller. The population of Tuvalu places it as the third smallest in the world, behind Nauru and the Vatican City.
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Birgus latro - Growing to lengths of up to 1 meter across from outstretched arms and weighing up to 4.1 kilos, the coconut crab is the largest land dwelling arthropod in the world. As the name implies, the coconut crab thrives on the fruits, nuts, seeds, and pith of fallen coconut trees, but it is an opportunistic feeder. Coconut crabs grow slowly, molting their exoskeleton once each year before reaching full-size at approximately 40 to 60 years of age. There are some claims of coconut crabs living for more than 100 years.