parentalia

'' charles darwin shocked victorian society by suggesting that man is descended from the ape. this is a shorthand way of expressing the idea that the common ancestor which we share with the hairy apes, the chimpanzee and the gorilla, was more 'ape-like' than 'man-like'. but at the end of the twentieth century, we have discovered that darwin was wrong. apes are descended from man--which is a shorthand way of saying that the common ancestor from which both ourselves and the hairy apes are descended had some distinctly human characteristics, notably upright walking, which the chimp and the gorilla have lost. ...

'' the case we have made seems so secure that we hesitate to press it further, for fear that it may seem that we protest too much and yet many people find the conclusions disturbing, ... that man, chimp and gorilla are not only very closely related, but are all almost equally close to one another. ... even more disturbing, the traditional picture of human evolution is not based on the same sort of analysis as would be applied to any other group... ''

john gribbin and jeremy cherfas, the first chimpanzee.