"The story of the great fish's remedial powers was perhaps attributable to the magical properties of crocodiles."

 According to an article in the Lancet (The Art of Healing in Ancient Egypt by Rosalie David, Vol.372, Issue 9652), the Ancient Egyptians used crocodiles and fish, as well as other animals and plants to treat diseases. The efficacy of of some of these improbable cures is now being confirmed by modern scientific studies.