A komodo dragon is a large lizard that can reach 2.5 meters or 2.7 yards in length, weigh 200 pounds or 91 kilograms, and drink 46 liters or 49 quarts of water. The document lists Google images, Ask.com, Sandiagozoo.com, and Onlineconversion.com as sources of information about the komodo dragon's size, weight, and drinking capacity.