2. The air circulation is another important factor. 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. Species such as the red iguana and also green iguana exist in huge numbers, but there are a few species similar to Fiji Island iguana as well as Brachylophus vitiensis, which are turning out to be in endangered category. However, many times, it is hard to distinguish iguanas. Most of the species act different and appear distinct. It is also known to eat the insects, worms and feces of desert lizards, mammals as well of carrion. The desert iguana can move very fast. You may spot them often crossing the roads or running ahead of your car. They possess powerful hind legs to move swiftly. Foxes, weasels, rats, bird of prey, snakes and human beings are their enemies. But otherwise, they are calm and fearful and run away, if you go nearer to them. These species are gradually getting endangered. Those found abundantly in wild earlier are getting vanished. The major causes are cutting of forests. Consequently, they lose the place to live. Moreover, they fall a prey to animals and human beings also eat them in many islands. They will need a shelter where they can move around freely and at the same time it is warm and comfortable for them. The young iguana will also grow faster to a larger size with proper food and environment. They like to bask in sun during the day break to get warmth to keep their body at a higher temperature. If you are interested in keeping pet iguanas, you should know all the important fundamental principles for bringing them up. The Selection of Iguana: When you buy infant iguanas to make your pet, you should buy the healthy reptiles, which are energetic and lively. The healthy iguana is round in shape and its eyes are also round and shining.