Maturity is at 3-5 years. Life span is 30-40 years. Females may breed every other year. Everything is adapted for life on the desert. Feet are broadened to walk on sand.
Eyelashes protect eyes from wind-blown sand.
Nostrils close to keep sand out. Lips are thickened to withstand the coarsest of desert plants. Coloration matches the environment. Callouses are present on knees and other parts of the body that touch the hot sand when the animal sits down. Hump is a flesh mound not supported by bones.