The family Iguanidae includes terrestrial and arboreal species. Some have prehensile tails. Males may defend their territories from other males and sexual dimorphism is known in some species. While most lay eggs (and clutch size can vary from 1 to 45 eggs), a number of species give live birth. Small species typically feed on insects while larger species tend to be herbivores.
Anoles can be very successful, with population densities of 20,000 per hectare in some places. (Mattison, 1989).
This family is very adept at climbing and
some can even climb vertical surfaces.
Some have webbed feet and others have prehensile tails. Most eat insects but some also include small
mammals and birds in their diet. There
are about 800 species of geckos which are known on all continents except