This is a PREOWNED book but 100% Guaranteed Satisfaction. Please examine the pictures carefully because the item in them is the exact one you will receive. Also, don't hesitate to ask for any other photos if needed. You may note some remnants of your book's past life - an autograph, an inscription, a dog-eared corner, or some yellowed pages. We do our very best to notate any flaws, but occasionally we may miss something. If you're not satisfied, please take advantage of our free return policy. We are a small Veteran owned business and truly appreciate your patronage. Ships well packaged and via USPS Media Mail, unless otherwise requested (may result in an additional charge). Will ship out next business day after payment is received in most cases, no more than than the 2nd business day after payment. _________________________________________________________________ Citing recent anthropological discoveries, a provocative analysis of possible changes to current scientific beliefs considers such topics as the possible link between humans and chimpanzees, the role of childbirth in the development of early social groups, and the possible interbreeding of humans and Neanderthals.