While our closest animal relatives have been swinging from the trees, humans have built a world that is vastly more complex. What are the defining features that have allowed us to do this? Are we special, and separate from all other animals, or are we just an especially successful mammal?While our closest animal relatives have been swinging from the trees, humans have built a world that is vastly more complex. What are the de...all »While our closest animal relatives have been swinging from the trees, humans have built a world that is vastly more complex. What are the defining features that have allowed us to do this? Are we special, and separate from all other animals, or are we just an especially successful mammal?«
Download is starting. Save file to your computer. If the download does not start automatically, right-click this link and choose "Save As". How to get videos onto the iPod or PSP.
