Iguanas can protect themselves from their foes and predators by hiding on the top of these trees. They are also capable to jump down and climb high for safety from the enemies without injuring themselves. Their lives are in peril these days. If you love nature and its creatures, you can help to save their species from extinction by saving them from predators. Female iguana can dig 100% play sand easily and make the pits for eggs that can also be used. It should be ensured that the nests are safe from pest. Moreover, the reptile should be safe in the proper environment of the nests against any harm like abrasion or injuries. The box used for nest should be durable and should contain about 200 pounds of sand or soil in it. Iguanas possess distinct characteristics and they behave in a different way. 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. The size should be big enough for iguana to roam around in it. 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. 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. Organ failure: The natural aging process results the failure of organs. In some cases, there is bacterial infection that causes the failure. The predominant signs are loss of weight and appetite, bloating and even death. Bladder stones: There abdomen gets swelled due to formation of stone in bladder.