Feet of the Nile
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Camels lived in North America (Detroit, I think) 50,000,000 years ago.  Not liking the motor city, they emigrated to Asia across the Bering Strait land bridge (which they burned after them) about 2,500,000 years ago.  The now live domesticated lives in Africa, Asia, and South America with some in Australia.  They come in two types: the one-humped dromedary and the two-humped Bactrian camel.  My wife was fascinated by their feet.  The two toed foot seems to have an gelatinous filling.  When they put their foot down, it spreads out to form a large print for walking on the sand.   Americans have, on the other hand, tennis shoe feet.  They originally lived somewhere in Africa or Asia and emigrated to North America (Detroit, I think).  They now live domesticated lives all over the  world and come to Africa to visit the early Detroiters.  

 On to Cairo!