Scorpions are predatory arthropod 动物 of the order Scorpiones within the class Arachnida. They have eight legs and are easily recognized 由 the pair of grasping claws and the narrow, segmented tail, often carried in a characteristic 前锋, 期待 curve over the back, ending with a venomous stinger. Scorpions range in size from 9 mm (Typhlochactas mitchelli) to 21 cm (Hadogenes troglodytes). [1] Scorpions are found widely distributed over all continents, except Antarctica, in a variety of terrestrial habitats except the high latitude tundra. Scorpions number about 1,752 described species, [2]...
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