Green anoles (Anolis carolinensis) are medium-sized lizards with long tails. They are the only anole native to the US. Sometimes called chameleons because of their color-changing ability, they can be anywhere from emerald green to brown or gray. When stressed, they turn dark brown. Males have a pink or red extendable dewlap or throat fan. Males often engage in lateral displays that include head bobbing and pushups. The toes have adhesive pads on the undersides. Green anoles are easily tamed and are common in the pet trade. They are active during the day, often around human habituation, and regularly bask head down on tree trunks, fence posts, decks or walls. Due to the invasion of Carribean Brown Anoles, which are more terrestrial and aggressive, the Green Anoles will more often be found higher in the trees and bushes.