You cannot make out about their comfort just looking at them, it is better to install a thermometer to control the temperature in their dwelling. You need to ascertain that the temperature is maintained at 70 degree Fahrenheit in day and 85 degrees during night. If you can place their cage nearer to some source of heat, that may be a wonderful thing. Iguanas have their bodies biologically made in such a manner that they can consume more of plant proteins. This signifies that they should be considered only vegetarian. Their food should consist of mostly vegetables or fruits with high nutritional level including collard green and leafy mustard. You can also feed them lettuce, but it should not be on regular basis. Important Characteristics of Rhinoceros Iguana Rhinoceros Iguanas are identified as the related species of Galapagos Marine Iguana. They have their main habitation particularly in Caribbean Sea and Hispaniola islands in North America. There is another species related to Rhinoceros Iguana found in Navassa and that is almost on the verge of extinction. The different varieties of iguanas may have dissimilar looks, but all of them resemble in relation to their diet, habits. The different varieties of iguana are: 1. Ctenosaura- spiny-tailed iguana. 2. Dipsosaurus, - desert iguana 3. Cyclura - rhinoceros and rock iguana. 4. Lemanctus - casque-headed iguana. 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. When they are in their natural dwelling, the iguana cantinas will be careful and shield themselves from the marauders. You should provide lukewarm water for iguanas to take a bath. The container should be shallow. The iguana should take a bath at least thrice in a week. You should take care of you iguanas for their safety. Some iguanas will have fun while bathing whereas other may get frightened. Managing your Iguana: You should handle your iguana to tame him in such a way that it is disciplined and trained.