The common leopard gecko (Eublepharis macularius) is a nocturnal, ground-dwelling lizard native to the rocky dry grassland and desert regions of Afghanistan, Iran, Pakistan, India, and Nepal. The common leopard gecko has become a popular pet, and due to extensive captive breeding, is sometimes referred to as the first domesticated species of lizard.
Leopard geckos are small lizards that derive their name from their spotted coloration. Hatchlings are on average 7 to 10 cm (2.8 to 3.9 in) in length and weigh about 2 to 5 grams. Adult females are about 18 to 20 cm (7.1 to 7.9 in) in length and weigh about 50 to 70 grams, while adult male geckos are about 20 to 28 cm (7.9 to 11.0 in) in length and weigh about 60 to 80 grams.
Common leopard geckos are also known to have temperature-dependent sex determination (TSD). Research shows that more females can be produced in predominantly cool temperatures (about 26–29 °C [79–84 °F]) and very warm temperatures (about 34–35 °C [93–95 °F]). It was recorded that males can be produced at the intermediate temperatures (about 31–33 °C [88–91 °F]).
Common leopard geckos are one of the most popular lizard pets. They are possibly the first domesticated lizard species. Their small size, robustness, and relatively easy care makes them a good “beginner” reptile pet. They breed easily in captivity, so most sold today are captive-bred rather than wild-caught.Due to extensive captive breeding and artificial selection, captive animals display a range of colors and patterns. Those found in the wild typically have more dull colorations than those kept in captivity as pets.