We strive to deliver the best value to our customers and ensure complete satisfaction for all our textbook rentals.
You can return your online books for any reason within our refund period – no questions asked.
Every order is available for express shipping, and return shipping is always free.
You'll be happy with the quality of your books (or we'll ship you another one on our dime).
You can extend your rental up to 14 days – at the same cheap daily rental rate.
If you decide to keep the book it will never cost more than the purchase price.
As always, you have access to over 5 million titles. Plus, you can choose from 5 rental periods, so you only pay for what you’ll use. And if you ever run into trouble, our top-notch U.S. based Customer Service team is ready to help by email, chat or phone.
Supplemental materials are not guaranteed for used textbooks or rentals (access codes, DVDs, workbooks).
Upright: The Evolutionary Key to Becoming Human
What, in evolutionary terms, propelled us to become human? The answer lies not in our forebears’ big brains or their facility with language but in their ability to walk on two feet. That remarkable fact standing and walking seem so mundane -- only starts the drama that Craig Stanford, codirector of the Jane Goodall Research Center, tells of our...
What, in evolutionary terms, propelled us to become human? The answer lies not in our forebears’ big brains or their facility with language but in their ability to walk on two feet. That remarkable fact standing and walking seem so mundane -- only starts the drama that Craig Stanford, codirector of the Jane Goodall Research Center, tells of our origins.Today scientists are finding far more evidence than ever before about our beginnings. The discoveries are prompting dramatic reappraisals of common beliefs about our past. Throw out the simple idea that millions of years ago some apes moved to the African savanna, where they evolved into runty hominids who eventually metamorphosed into us. Dump that textbook image of an ape transforming into a human in five stages. Newly found remnants of two-legged proto-humans” show that our ancestry is much richer and more convoluted. In no way can we still think of ourselves as standing on the top rung of an evolutionary ladder of excellence. But what about our tremendous thinking powers? Our brains could have started to grow because, as our ancestors adapted to standing and walking upright, they became more successful at hunting ever larger animals. The meatier diet could have fueled the increase in brain size. And the switch to standing and walking tall may have allowed our forebears to develop language, let alone take over the entire world as their home. Describing his - and others' - latest research and interpretations, Stanford offers a fresh, galvanizing take on what made us human.
Since launching the first textbook rental site in 2006, BookRenter has never wavered from our mission to make education more affordable for all students. Every day, we focus on delivering students the best prices, the most flexible options, and the best service on earth. On March 13, 2012 BookRenter.com, Inc. formally changed its name to Rafter, Inc. We are still the same company and the same people, only our corporate name has changed.