About Iguana

A large and stout iguana with dusty brown back legs/sides; dorsal spines can be brilliant turquoise blue. They have spines along back are small, especially in females. Juveniles are more colorful with body green or blue-green with row of black chevrons.

Pores present on skin over femur. Eyes flush bright crimson when agitated; yellow otherwise. Most reptiles can regenerate the missing end of a tail. Thermoregulate to maintain high body temperatures in wild – between 30-40 °C (86-104°F). Members of the iguanid family, the agamid family (dragon lizards), and the chameleon family all have fleshy tongues and catch their prey with some involvement of the tongue. Reptiles eyes have four kinds of cones for detecting light wavelengths (compared to three kinds for humans). Extra receptor detects UV-A wavelengths; used in species, sexual, and individual recognition, and in foraging and motion perception

They see UV-A wavelengths unseen by humans. Rock iguanas may detect UV light absorbed by femoral gland secretions, this ability was studied in desert iguanas. Pheromone deposits on ground and objects in environment can be located using two modes of sensory input – olfactory and visual. Social interactions between iguanas enabled with pheromone detection