Roughly 25,000 years ago, in a series of deep caves in Spain and France, a number of forever nameless Cro-Magnon geniuses gave us our first works of art. Working by lamplight in otherwise total darkness, they produced images so breathtaking that for many years after their discovery in the late 19th and early 20th centuries, many paleontologists thought they were modern fakes. And what was the first thing that man chose to depict at the very dawn of civilization? It was hunting. Wild bulls…