The two species of lizard within the genus Iguana possess a dewlap, a row of spines running down their backs to their tails, and a third "eye" on their heads
Never realized that iguanas had a photoreceptive third eye on their heads
Iguana is a genus of herbivorous lizards native to tropical areas of Mexico, Central America, several islands in Polynesia such as Fiji and Tonga, and the Caribbean
The word "iguana" is derived from a Spanish form of the original Taino name for the species, iwana.