However, it will depend on how they are fed and taken care. Initially, iguana belongs to a humid and tropical climate. These are very energetic creatures in sunlight. When these reptile perceive any danger, they use their defense tools comprising their strong tail, claws, jaws and nails to protect themselves. Desert Iguana Features: Matured desert iguana is between 10 inch and 16 inch in length. It has a roundish and large body and a long tail. It has a brownish head with a special reddish brown outline like a net. The trunk and the neck have a tan and grayish spots over it. Its tail also has a few whitish and grayish spots. In this respect, iguanas are the most delicate and need to be nurtured very affectionately. Taking into account their small sizes, they seem to be easygoing, but they need a tender care for their proper safeguard so that they grow up into healthy young ones. Baby iguanas also have some crucial requirements to be furnished similar to those for any other pet. The best time to give them food is at the daybreak almost an hour after they wake up. It is the ideal time for their food as they can digest the food during the day before going to sleep. Moreover, the morning atmosphere provides perfect temperature for digestion of food. You can feed them all through the day also, but take care to feed in small quantities. The male in this species grows up to 56 cms in length and weighs about 10 Kg. Rhinoceros Iguana has a raspy skin with dermal scales on it. There are also large scales on his head. Some of the species of Rhinoceros Iguana have horns also. These can be comprehended as simple grown up scales. Their males are evidently much larger than females. They want to dominate in their particular area and show that they are powerful. They will fight out with other males to mate a female iguana. Iguanas are arboreal by nature. They make their dwellings on the top of trees. Naturally, they can climb up the trees and even jump from a height of about 50 feet.