Anole, (genus Anolis), any of the more than 250 species of small arboreal lizards related to iguanas (family Iguanidae). Anoles occur throughout the warmer regions of the Americas and are particularly abundant in the West Indies. Like geckos, most moles have enlarged fingers and toes covered with microscopic hooks. These grips, along with their sharp claws, make it possible for them to climb, even on smooth surfaces, with great speed and agility. Anoles have venom glands that produce very weak, harmless venom. Adult moles can be up to 12 to 45 centimeters (5 to 18 inches) long, and most species can change color. Males have large fan throats, or neck frills, which are often brightly colored. The frill signals the male’s territorial possession and also serves to attract females to mate.
A familiar anole (A. carolinensis, or green anole, commonly but erroneously called the American chameleon) is native to the southern United States. Its colour varies at times from green to brown or mottled, but its colour-changing ability is poor compared with that of the true chameleons of the Old World. Green anoles reach a maximum length of 18 cm and have a pink dewlap.
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