Iguana is a genus of lizard native to tropical areas of Central and South America and the Caribbean. The genus was first described by Austrian naturalist Josephus Nicolaus Laurenti in his book Specimen Medicum, Exhibens Synopsin Reptilium Emendatam cum Experimentis circa Venena in 1768. The genus Iguana includes two species: the green iguana (a popular pet) and the lesser Antillean iguana.
The word “Iguana” is derived from a Spanish form of the original Taino name for the species “Iwana”.
An iguana’s ear is known as the tympanum. It is the iguana’s ear drum, and is located right above the subtympanic shield and behind the eye. This is a very thin and delicate part of the iguana, and crucial to their hearing.