Ive been around reptiles for over twenty years and this was always just common knowledge to me. When I got into balls exclusively I did further research into their natural habitat, food sources etc. I read this in zoological/herp books . Im sure if you looked for it you would find something online. I would say that ballpythons are immune to many reptile venoms so surf around. I bet you didnt know theyre main source of food were Gerboas too. Theyre neat but nearly extinct now. But back to pred/prey ball pythons mortal enemies in africa are king cobras and the giant african rat (the latter also a food source)