The Dragons of Eden: Speculations on the Evolution of Human Intelligence By Sagan, Carl Books / Paperback Books ISBN: 0345281535 / Publisher: ballantine books, February 1980 Price Starting at $5.65 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. (Non-Fiction, Psychology) $5.65 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for The Dragons of Eden: Speculations on the Evolution of Human Intelligence