Not all camels have humps.

The vicuna, smallest member of the camel family, lives in the Andes mountains above the snow line. It stands about 3 feet high, weighs 75 to 100 pounds and has a finer fleece than any other wool-bearing animal. It has no hump.South America's wild reddish-brown guanaco and the domesticated alpaca and llama are other South American relatives of the camel. They, too, have no humps.