Galapagos Jurassic Fir Bark is for Humidity-Loving Reptiles. Our bedding is made from 100% Douglas Fir Bark. We use a smaller bark size to facilitate feeding, crawling, and slithering. It is a perfect substrate for Basilisks, Tomato Frogs, Milk Snakes, Burmese Pythons, Iguanas, Russian Tortoises, Boa Constrictors, Gopher Snakes, and similar species.