The South African archaeological record is so important because it shows some of the oldest evidence for modern behavior in early humans. (sciencedaily.com)
When he plugged in estimates of prehistoric population sizes and densities, he found that the ideal demographic conditions for advancement began in Africa 100,000 years ago — just when signs of modern behavior first emerge. (discovermagazine.com)
Throughout, the book presents a logical, plausible, and testable theory that is consistent with modern behavior analytic thinking. (newharbinger.com)