The emperor scorpion or imperial scorpion (Paninus imperator) is a species of scorpion native to Africa. The emperor is one of the largest species of scorpion in the world, with adults averaging about 8 inches (20 cm) in length. However, some species of forest scorpions are its equal and one scorpion, Heterometrus swammerdami, holds the record for being the world's largest scorpion at 9 inches (23 cm) in length. Their life span usually ranges from 5-8 years when held in captivity, but is likely shorter in the wild. The emperor's size, relatively low toxicity, and life span make it the most popular scorpion in the pet trade, which has led to such over-collecting in the wild that it is now a CITES listed animal, meaning it is threatened with extinction if exportation and other threats, such as development, are not regulated.