Potential energy
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
There are lots of animals that do this and they are classified as herbivores.
This biome has a layer of soil that can either be sandy, gravelly, or stony, depending on the type of desert. Deserts usually get at most 50 centimeters (20 inches) of rainfall a year, and the organisms that live in deserts are adapted to this extremely dry climate. Plants in deserts have adaptations to conserve water.