Why do we shave? It doesn't seem like a natural activity. There are no examples of shaving in nature. The only creature that comes close is the male South Pacific Groping Beetle, which sometimes, just before mating, will slap on a little Aqua Velva. But we think this resulted from atomic testing.
Dave Barry (2012). “The Greatest Invention in the History of Mankind Is Beer: And Other Manly Insights from Dave Barry”, p.39, Andrews McMeel Publishing