While the average size and weight of the Lesser Antillean iguana (Iguana delicatissima) vary significantly from one environment to another, its tail is always around 70 % of its total size. It can therefore measure more than 3 ft (1 m) in individuals of 5 ft (1.5 m) and up to 4.5 ft (1.4 m) in the largest specimens of 6.5 ft (2 m). The iguana uses its tail like a whip to strike and hurt its attackers or rivals. Like many other lizards, the Lesser Antillean iguana trapped or grabbed by its tail can separate from it by autotomy to escape. Its tail will then grow back. Males present at the base of their tail two bumps of a few inches formed by their hemipenis (two sexual organs) in their sheath. They also have on the ventral side of their thighs more developed femoral pores than those of females which allow them to excrete an odorous waxy substance.