Their tail constitutes almost half of their total length. In spite of being green they have a dominant black stripe on the body. They have monochromatic green color. Their green shade is different from bright green or grayish and dull green. Their skin is rough like rasps and they have pointed scurfs on their back. You can follow a diet plan for them in consultation with an expert. The iguanas normally eat plants, vegetables and fruits. They should not be fed food containing animal protein. They may relish pizza and all junk food, but that is not good for their health. Give them a limited quantity of vegetables. Genus Conolophus, have closest resemblance with the marine iguana. This iguana is also known as Galapagos Land Iguana and basically eats plants and cactus. The next varieties, Genus Ctenosauria are spiny tailed iguanas. They are basically natives of Mexico and Central America. Further, they are very small in comparison to other varieties of iguanas and can grow only from 5 inches to 35 inches in length. The female red iguanas lay eggs in burrows dug by them in hot sunny areas. They cover their eggs and leave them unguarded. The eggs get hatched themselves because of warmth of steady temperature between 77 and 89 degrees Fahrenheit. All eggs get hatched simultaneously. Young iguanas come out of the tunnel themselves. The male iguana has quite different appearance and behavior than a female. Male iguanas are more invasive and they fight with other males until end even risking the life. It depicts their territorial behavior. They fight to show their supremacy on the particular territory. A male iguana will fight with another male he finds in his surroundings. A two foot or higher depth can be used, if it has sufficient height. This size is enough for a small iguana. The male iguana will find it as a confinement unless there is additional provision for him to move outside the closet to play and jump around. If you interact with your pet daily, it will make him more homely and it will have confidence in you.