A history written on a truly staggering scale, in this book the author takes us on a journey through the last 150,000 years of human evolutionary history and helps us to understand the relationship between that development and what came before. How is it that thinking beings developed from earlier forms of non-sentient life? How did humans come back from the brink of extinction 100 millenia ago and what evolutionary developments enabled that kind of adaptation and survival? Bret Stetka traces the history of the human brain from its earliest manifestations, to its most contemporary achievements and possibilities. What comes next for humanity, in an era where we have become capable of our altering our very own genetic codes, bypassing evolutionary adaptation altogether?(This book may contain a sharpie mark on the top or bottom edge and may show mild signs of shelfwear.)