Oxford: Oxford University Press, 2009. Octavo, dustwrapper, black and white photographs, line drawings.

Are chimps almost human? Are we just smarter chimps? What does that oft-quoted 1.6% difference in DNA actually mean? As teams worldwide seek the genetic basis of our humanity, a complex picture is emerging. Small changes in key genes can cause big ones in brains, bodies and behaviour. We've changed profoundly since the chimp-human split.