The two men have been very intimate and reliable friends throughout their lives.

For most of their lives, the two men had shared confidences, swapped advice and sup ported each other’s ambitions. The dozens of letters that Justice Blackmun saved document a relationship of sometimes startling intimacy.

If Darwinian theory works so well, why challenge it? There are several reasons to do so. Although Darwinian theory explains many of the facts of evolution better than any other theory, it does not necessarily explain the whole process. Also, some of the results of evolution do not match what Darwinian theory would predict.