Step into the desert - a dry, dusty place with little water and vegetation. What could live in this hostile environment? Peel back the corners of the desert to discover the incredible organisms that survive in this ecosystem, from scorpions and cacti to musk oxen and seals. Find out how deserts work as a system, carving out an existence in one of the most extreme biomes on Earth. Learn, too, how deserts are found all around the world and what you can do to help protect these amazing wildernesses. Teacher's guide available.