And although all this was thousands and thousands of years ago, the drawings and paintings are still to be seen. They tell us many things more than have been related here about the cave men of Bolo’s time. They tell us of another animal, more terrible than the cave bear or the mammoth, the dreaded Sabre-Tooth, striped with rich, velvety brown like a tiger, and strong and bloodthirsty as a lion. They tell us of the ways in which the cave men fought and lived and learned, and so came to know many things that were never dreamed of in the days of Bolo. But all that is another story.