رودی که به سمت بالا جریان دارد: سفری از بیگ بنگ تا مغز بزرگ

Written in the form of a scientist's diary of a two-week float trip down the Colorado River through the Grand Canyon. There we find rocks of great age, fossils, dwellings of Stone Age peoples, and experience the land much as our ancestors did during all those untold generations in the dimly remembered world from which we somehow took flight. This book examines the origins of the universe and current theories on the evolution of human intelligence.