The cradle of humankind world heritage site is a unique area that probably tells us more about the history of our earliest ancestors than any place of a comparable size elsewhere in the world. This title facilitates the spread of the knowledge we have gained in the field thus far. It tells us something of the world in which our ancestors lived; provides a guide to all the known hominid species; details all the sites within the area and describes its animals and plants, both past and present, to give the reader a context in which to understand who we are and where we have come from.