Many southerners will recognize the green anole, aka Carolina anole, aka American chameleon. The scientific name is Anolis carolinensis.
Though sold in pet shops as “chameleons” because of their color-changing ability, they’re not the same as the true chameleons of Africa and Asia.
Green anoles are small, slender lizards that live mostly in trees, but can also be found clinging to window and porch screens. Usually bright green, they can change their color to brown or tan. They have a pink throat fan, or dewlap, which they expand to communicate with other anoles. They are territorial, so what they’re communicating is probably “MY tree! Go away!”