MixedThe Wall Street Journal...a tale of his journeys into the wild to retrace the steps of the first Americans ... his limited archaeological expertise leads him into pitfalls about what that experience entailed ... He so often repeats his worry that colonizers would have been eaten by the big carnivores that roamed this landscape that one can’t help wondering if he’s projecting his own fears or just stoking the plot for dramatic effect ... Atlas of a Lost World trips over many such matters. Postglacial sea-level rise, even at its most rapid 14,500 years ago, was not so fast that the sea would have seemed as if it were \'closing like a noose\' or would even been noticed on the scale of a human lifetime ... Such errors inevitably undermine the book’s scientific credibility. But read Atlas of a Lost World for what it is, not what it isn’t. It’s a clever, smartly written and altogether enthusiastic effort.