Ernie Janes / Close up of tail sting of Hornet (Vespa crabro) UK

Tony Phelps / Crusher Burrowing Scorpion (Opistophthalmus macer) tail showing sting and venom vesicle, both in the last segment. DeHoop Nature reserve, Western Cape, South Africa.

Stephen Dalton / European yellow scorpion (Buthus occitanus) close up of tail and sting, Spain

Stephen Dalton / Spanish / European scorpion (Buthus occitanus) stinging a spider with its tail, controlled conditions

Stephen Dalton / Spanish / European scorpion (Buthus occitanus) stinging a spider with its tail, controlled conditions

David Shale / Imperial / Emperor / Giant African scorpion {Pandinus imperator} Close-up of tail and metasoma. Captive

David Shale / Imperial / Emperor / Giant African scorpion {Pandinus imperator} Close-up of tail and metasoma. Captive

Norbert Wu / Blue-spotted Stingray (Dasyatis kuhlii) stings with barb on tail, Fiji

Jose B. Ruiz / Sting on tail of scorpion