The first signs

"One of the most significant works on our evolutionary ancestry since Richard Leakey's paradigm-shattering Origins, The First Signs is the first-ever exploration of the little-known geometric images that accompany most cave art around the world--the first indications of symbolic meaning, intelligence, and language. Imagine yourself as a caveman or woman. The place: Europe. The time: 25,000 years ago, the last Ice Age. In reality, you live in an open-air tent or a bone hut. But you also belong to a rich culture that creates art. In and around your cave paintings are handprints and dots, x's…