The Mind in the Cave, David Lewis-Williams (non-fiction). The lost civilisations of the Stone Age, Richard Rugely (non-fiction, the information is good, but some of his conclusions may be a little far fetched). Shaman, A novel of the Ice Age (fiction). read more
The digestive abilities of anatomically modern humans, however, are different from those of Paleolithic humans, which undermines the diet's core premise. During the 2.6-million-year-long Paleolithic era, the highly variable climate and worldwide spread of human populations meant that humans were, by necessity, nutritionally adaptable. read more