We stood, amazed, and then we followed the tracks through the trees and into an open area. There we found five of them-two big and three little ones. They were enormous, with the babies as big as elephants. They were gray and had scales, like a lizard, so in the sun, they shimmered. They all had powerful tails, huge three-toed back feet, and small five-fingered front feet. They were the most extraordinary animal, and we stayed low in the bushes, watching them.