Tiffany Cain, BS
Zoologist, Veterinary Services Department, Drs. Foster & Smith, Inc.
The Green Anole (Anolis carolinensis) is one of the most familiar lizards in North America. There are more than 300 species of anoles throughout the world, over half of which are found in North, Central, and South America. The Green Anole is the only anole native to the United States. Although they are not closely related to true chameleons, Green Anoles are often referred to as "chameleons" or the "American Chameleon" due to their ability to change color.
Natural Environment
Native to the United States, the Green Anole is found in the southeastern states from North Carolina to Florida and across to Texas. Green Anoles are arboreal lizards, mostly keeping to trees and shrubs, and will find their way to fences and walls.
Physical Characteristics
Green Anoles are small lizards that grow to 5-8" in length. They have a long tail, long claws, and are lighter in color around the throat and neck.
Green Anoles have the ability to change color among shades of green and brown. These color changes are not used for camouflage; they are used to reflect stress or to communicate. For example, a content Green Anole is green. When active, they tend to be bright green. When they are cold or displaying social subordinance, they will turn brown. When aggressive, they will be bright green with a dark brown patch behind the eyes.
Male Green Anoles have a throat fan, or dewlap, that ranges from pink to white in color. During courtship and territorial disputes, muscles extend the throat fan for a colorful visual display.
Green Anoles live approximately 3-6 years.
Housing
A vivarium, a container similar to an aquarium with a vented hood, is ideal housing for anoles, as it will maintain the heat and humidity required to keep anoles healthy. Generally, a ten-gallon aquarium is sufficient for two anoles. Green Anoles can be kept alone or in groups of one male and several females. Two or more males kept together without adequate space could result in territorial aggression and fighting.
Substrate: The substrate, the material that lines the bottom of the enclosure, should mimic the natural substrate to which anoles are accustomed. This includes slightly dampened sphagnum moss or peat moss. The moss can also be layered over an inch of pea gravel. Another method is using one to two inches of potting soil covered with bark mulch.
Landscaping and furniture: Green Anoles like to climb and bask, so logs or branches should be provided. Added cover such as rocks will benefit anoles if a number of them are kept in the same enclosure. Small plants should also be provided; nontoxic plants in the enclosure provide humidity, shade, and a sense of security as well as adding an aesthetic quality. Dragon plants (Dracaena), Ficus benjamina, and hibiscus are good choices. Be sure the plants have not been treated with pesticides and the potting soil does not contain vermiculite, pesticides, fertilizer, or wetting agents. Washing the plant with a water spray and watering it thoroughly several times to the point where water runs out of the bottom of the pot, should help remove toxic chemicals, which may have been used. Keeping purchased plants in a different part of the house for a while before putting them in the enclosure will also be helpful.
Glass cages, even those with a screen top, should NEVER be used when providing access to natural sunlight. Glass cages will trap heat and can cause fatally high temperatures.
Second to the sun, the best light source is a combination of visible light from fluorescent or incandescent lights, and UVB light from special reptile black lights or combination lights.