Why are camels used to travel through the desert?
Contrary to popular belief camels do not store water in their humps, although they do something close. They store fatty tissue in their humps, and this can be used as a source of energy, as well as a source of water. The fat in their humps reacts with oxygen to produce water, about 1111g of water is produced per 1000 grams of fat.
Camels also have oval shaped red blood cells, this shape allows them to flow easily while the camel is in a dehydrated state, this brings oxygen to the animals muscles and allows them to keep moving, even though they require water. They can also withstand greater temperature ranges than other animals, they only begin to sweat when they become hotter than 106 degrees Fahrenheit
The camel has very broad and large feet. As a result of the large surface area in contact with the ground, it exerts less pressure on the sand and sinks only slightly in it. Other animals have smaller feet which exert more pressure on the sand, they sink deeper into the sand which requires them to expend more energy when they walk through the desert.
Bigfoot would also not have a problem walking through the desert.