It has been discovered one hundred years ago in 1910. Then in 1912, a scientific expedition was carried on and they captured several dragons. Komodo dragons live on the Komodo islands in the National Park. It am largest lizards on earth. Komodos have a life span of 50 years. Their length can be up to 3 meters. Komodo dragons have are also the heaviest lizards and it can weight up to 70 Kg. Komodo dragons hunt and ambush prey including invertebrates , birds , and mammals. The Komodo dragon can see objects as far away as 300 m. but because its retinas only contain cones, it is thought to have poor night vision. The Komodo dragon is able to see in colour, but has poor visual discrimination of stationary objects. The Komodo dragon uses its tongue to detect, taste , and smell stimuli , as with many other reptiles, with the vomeronasal sense using the Jacobson's organ , rather than using the nostrils. It has been claimed that they have a venomous bite. The Komodo dragon prefers hot and dry places, and typically lives in dry, savanna and tropical forest at low elevations. For shelter, the Komodo dragon digs holes that can measure from 1 to 3 m. wide with its powerful forelimbs and claws. Because of its large size and habit of sleeping in these burrows, it is able to conserve body heat throughout the night and minimise its basking period the morning after. Although it eat mostly carrion, it will also ambush live prey with a stealthy approach. Komodo dragons eat by tearing large chunks of flesh and swallowing them whole while holding the carcass down with their forelegs. Mating begins between May and August, and the eggs are laid in September. It is an endangered specie. Since this giant Lizard has been protected and the creation of the Komodo national Park, their number is actually increasing but very slowly.