Once upon a time, there was a mother camel and her little calf who lived in the zoo.  They were basking in the hot sun one afternoon, the calf sprung up to his feet.  "Mother, can I ask you some questions?" asked the inquisitive calf. "Obviously you can, my child", answered mother camel. The little Camel inquired, "Mother, why do we have a thick rough padding on our feet? Why do we have two toes? I took a peek at the elephants next to us and they don't appear to have them", mother camel replied, "My child, we camels originated from the desert where the terrain is mostly sand and rocky soil. Our toes have hard nails that spread and level when we put our weight on them. This prevents us from sinking into the loose and constantly shifting sand. The thick protective padding that we have provides us with a barrier against the hot desert sand and protects us from being burnt as we walk."  The little calf fired off his next question, "M...