For the scientifically literate, few things are as confusing as the persistent, even rabid refusal of millions of Americans to accept the theory of evolution by natural selection. How, the science-minded want to know, can these blubbering know-nothings ignore the vast body of evidence that supports Darwinism? How is it possible for them to trust a millennia-old Hebraic tribal legend over the hardworking efforts of countless brilliant scientists? Are they simply that stupid? The viscerally satisfying answer to that last question might be “yes.” But as a researcher, I believe the reality is far more complicated.