The tokay gecko is a nocturnal arboreal gecko, ranging from northeast India, to Nepal and Bangladesh, throughout Southeast Asia, Philippines to Indonesia and western New Guinea. Its native habitat is rainforest trees and cliffs, and it also frequently adapts to rural human habitations, roaming walls and ceilings at night in search of insect prey. Increasing urbanization is reducing its range. In the late 1980s and early 1990s it was introduced into Hawaii, Florida, Texas, Belize, and several Caribbean islands, where it can be considered an invasive species.
The Tokay Gecko is the second largest Gecko species, attaining lengths of about 11-20 inches (28-51 cm) for males, and 7-19 inches (18-48 cm) for females, with weights of only 150-400g. They are distinctive in appearance, with a bluish or grayish body, sporting spots ranging from light yellow to bright red. The male is more brightly colored than the female. They have large eyes with a vertical slit pupil. Eyes are brown to greenish brown and can be orange or yellow.
Males are very territorial, and will attack other males Tokays as well as other Gecko species, as well as anything else in their territory. They are solitary and only meet during the mating season. Females lay clutches of one or to hard shelled eggs which are guarded until they hatch. Tokay Geckos feed on insects and small vertebrates. They have developed such a strong bite for a lizard their size due to specializing in preying on beetles. They are able to crack the beetle shell easily due to this.