Arabian camels have one hump and are native to Africa, Saudi Arabia, and southwestern Asia, though they are no longer found in the wild. Camels are known for their ability to go three weeks without water, mostly because a camel's body temperature changes throughout the day, rising when it's hot and making it unnecessary for the animal to sweat or pant. In addition, its impressive hump contains fat that provides sustenance during periods of fasting, and shrinks when well used. To grow the hump back to its normal size, a camel must eat normally for three or four months.
Camels have been around for 40 million years. It may be hard to imagine them in North America, but they once roamed our land, before its population went extinct 15,000 years ago.
Photo: Mlenny Photography/Getty
Info Source: Animal Planet