Kangaroo rats are masters of desert survival. Their bodies adapted to reduce the amount of water needed and the amount of water that is lost.

Although the diet of a kangaroo rat is mostly consists of dry seeds, it has almost no need for liquid water. Instead, they survive almost entirely by transforming fats from the seed into water through digestion. Kangaroo rats can extract a half gram of water out of every gram of seeds consumed — that is about one drop of water for every two seeds!