You can choose an inexpensive enclose for them that has proper air circulation for their comfort. It is possible to install a noiseless small fan to maintain the air flow in the enclosure for iguanas. In addition, you should make arrangement to maintain the temperature and humidity in their cage. The mold should not be allowed to grow. Over and above these qualities, the baby green iguanas are very strong. They jump and fall from the height of 40 to 50 feet without any sign of injury and stay safe and sound. The male iguanas are found with a flap called dewlap on ir skin. They impress their female iguana with this flap. Also, their dewlap is useful to scare the predator. The nose scrapes are resulted from wires, plastic or glass used for their enclosure of cages. If these abrasions are not treated, there is formation of ulcerian sostrum, infection with bacteria and disfiguring of nose. Thermal injuries: Burns and thermal injuries can come, if iguana comes in direct contact of heat sources in their enclosure. It should be round and its skin should be free from scars, scratches lumps or bumps. The healthy iguanas are very fast in their movements and will not stay inactive at one place. They will move around in their cage. Giant green iguana is very eager to know everything taking place around him. Its eyes will be round and it will go on flicking the tongue in and out as it moves around. Their bellies are white in color and tails have white spots and have stripes. They are normally about 15 inch in size when grown up. They have long tails almost double the length of their bodies. Genus Sauromalus iguana is referred as Chuckwalla. This species is full-bodied herbaceous iguana normally living in Mexico and United States. In order to control its body temperature, it will change its color from gray to clear white. It will have a darkest color in the morning when it is cold and gradually it turns its color to whitish in the afternoon to avoid feeling very hot. The scientific name for the desert iguana is dispsosaurus dorsalis.