The document discusses desert habitats and the plants and animals that live there. It describes how deserts are found around the world and notes that some animals, like camels, kangaroos, and gazelles, are large and must travel long distances to find water. It also mentions that camels store water in their humps and need little water. Oases are mentioned as vegetated areas in deserts supported by springs or wells that allow for crops and human settlement. Common desert plants like cacti have adaptations that allow them to survive in the harsh, dry conditions.