The common assumption that Darwinism and conservatism are mutually inconsistent is now fiercely debated on the right. A number of conservative thinkers argue that evolutionary biology can replace religion as the source of morality while scientifically confirming conservative public policy. Illuminating this crucial but confusing debate, a new book by Carson Holloway explains why Darwinian conservatism is both illusory and dangerous. Until recently, the obvious conservative response to Darwinism was hostility because of its atheism and materialism. Prominent scientific writers, particularly those working in fields informed by Darwinian biology, have been contemptuous in their dismissal of religion, calling it not only false but harmful.