Scanty nourishment and the permanent lack of vitamins made people of the Bubal tribe ask their only wealth - cows - for help. The tribers learned that eating the menstrual matter of cows helps them fight such diseases as rachitis, scurvy and leukemia. The mysterious tribe lives between Kenya and Somalia. This is the only nation in the world, which practices a very unusual tradition: their children eat cows menstrual matter until they get married. The Bubals believe that the licking of cows vagina makes would-be warriors strong and courageous. Italian scientists have recently discovered that the menstrual matter of cows is a source of such vitamins as B6, B12, E and D. In addition, it makes up the deficiency of iron, magnesium, phosphorus, calcium and potassium. The most interesting thing happens afterwards, though. Hormone changes become extremely conspicuous with all males of the African tribe, after they reach puberty: their testicles grow up to 70-80 centimeters in diameter.