How many humps does an Arabian camel have?

Arabian camels, also known as dromedaries, have only one hump, but they employ it to great effect. The hump stores up to 80 pounds of fat, which a camel can break down into water and energy when sustenance is not available. These humps give camels their legendary ability to travel up to 100 desert miles without water.

When camels do refill, however, they soak up water like a sponge. A very thirsty animal can drink 30 gallons of water in only 13 minutes. Camels can run at up to 65 km/h (40 mph) in short bursts.

Their eyelashes are double-rowed and serve the practical purpose of keeping sand out of the camel's eyes. Camels can close their nostrils at will, which also reduces water loss while helping to keep sand out; and they have an exceptionally fast rate of rehydration. The average life expectancy of a camel is 40 to 50 years.

Arabian camels have been domesticated for approximately 3,500 years and have been long valued as pack animals. They are used for transport, and for their meat, milk, wool, and leather.