Iguania

Iguania is an infraorder of lizards that includes approximately 700 species across more than 40 genera, primarily found in the Americas, with some exceptions in Fiji and Madagascar. These lizards are characterized by small scales and often a prominent dewlap (a fold of skin under the throat). Many species also have a crest of scales along their back and tail.1

Iguanians are typically visual predators that rely on camouflage and "sit-and-wait" tactics to catch prey, which often consists of arthropods. While many are insectivores, some lineages have independently evolved herbivory. A key distinction within Iguania is the family Iguanidae, which retains ancestral tooth attachment, while related families like Agamidae and Chamaeleonidae developed different tooth structures. The common iguana (Iguana iguana) is a well-known example, recognized for its size, sharp claws, and long tail.123