Camels have unique adaptations that allow them to survive in desert environments with little water. They store water in their bloodstream and can go up to a week without drinking. Their humps contain fatty deposits that provide energy, not water. Camels can lose 40% of their body weight before distress and drink up to 21 gallons in 10 minutes when water is available. Their mouths, stomachs, and teeth allow them to eat dry plants that other desert animals cannot.