Emerging from the narrow underground passages into the chambers of caves such as Lascaux, Chauvet, and Altamira, visitors are confronted with symbols, patterns, and depictions of bison, woolly mammoths, ibexes, and other animals.
Since its discovery, cave art has provoked great curiosity about why it appeared when and where it did, how it was made, and what it meant to the communities that created it. David Lewis-Williams proposes that the...