Very good “catch-up” of recent science regarding human evolution and how the model proposed by Reasons to Believe (RTB) fares as a result. This was an update to the original 2005 text and covered a good sampling of what anthropologists, archaeologists, and paleontologists have discovered since then. The authors provided a very candid review of where the RTB model needed to a be adjusted as well as those areas where the model's predictions were born out. Excellent overall review for the interested layman.