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Pseudocerastes urarachnoidesis in known as “Iranian spider-tailed viper” because of its unique elaborated arachnid-like caudal snake, reported only in western Iran so far, uses its tail movements for defence and hunting. By moving the tip of the tail, the structure is reminiscent of a moving spider, luring potential prey. Credit: Avian deception using an elaborate caudal lure in Pseudocerastes urarachnoides(Serpentes: Viperidae) Behzad Fathinia; Nasrullah Rastegar-Pouyani; Eskandar Rastegar-P
