The green anole Anolis carolinensis is the only member of the large Anolis genus endemic to North America. Common throughout the southeast of the United States it is the best studied lizard this genus . Males of the species establish territories during the breeding season to ensure breeding access to the females whose territories are encompassed by his. Male Anoles will defend their territories from other males. Confrontations between males include head bobbing displays, the extension of their distinctive dewlap extended and physical fighting .