Kenneth Miller is a professor of biology at Brown University. He is also a widely published author (co-author of high school and college biology textbooks used by millions of students). He is also a practicing Roman Catholic who has served as an expert in several court cases concerning creationist school boards that have tried to muzzle classroom science. In his most recent book, Only a Theory: Evolution and the Battle for America's Soul, Miller makes an unrelentingly strong case against creationists of all stripes, including those who advocate "intelligent design." I did not realize the strength of the scientific case based upon the analysis of the genomes of human beings and other animals. How strong is it? It is at least as strong as the fossil record, arguably much stronger. I already knew a few things about the arguments based on genome analyses. For instance, I had often read that the genomes of chimpanzees and humans were 99% the same (or, at least, 96% the same). I also knew that all animals possessed Hox genes, essentially "toolkits for generating body form." Miller reminds us that "it is the same kit whether that animal is a honey bee, a fish or an elephant." The Hox genes prove "deep connections between animal groups." Miller points out that these similarities are even much more striking than Haeckel's (admittedly exaggerated) embryonic drawings. In fact, Haeckel "actually understated the evolutionary case each of these embryos possesses the same developmental toolkit, revealing both are common ancestry and the similarity of form and function produced by the workings of the evolutionary process." These profound Evo-Devo findings (the combination of development and the study of evolution) show that we "no longer need to make a distinction between the two types of change known as macro evolution and micro evolution. We don't need to attribute special mechanisms for large-scale changes. Evo-devo "reveals that macro evolution is the product of microevolution writ large." According to Miller, these should be "chilling words" to the ID crowd.