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Whip scorpions

Whip scorpions, from the order Thelyphonida, are lesser-known arachnids that resemble scorpions, although they do not have a metasoma (a “tail” with a sting). These arachnids defend themselves by spraying acetic acid, which is why they are also called vinegaroons. In evolutionary terms, whip scorpions are more closely related to spiders than scorpions. The only occurring species in the Manaus region is the Thelyphonellus amazonicus, a very small animal that has raptorial pedipalps and can measure up to 3 cm.

Whip scorpion • Photo Thiago G. Carvalho