Stephen C. Meyer. 2013. HarperOne. 498 pages (hardcover).Charles Darwin knew that his theory did not explain what is known as the "Cambrian explosion. This â€œexplosionâ€ marks the sudden appearance in the fossil record of many animals with no apparent ancestors in earlier layers of rock. In Darwin's Doubt Stephen C. Meyer tells the story of the mystery surrounding this explosion of animal life. Expanding on the arguments of his previous book, Signature in the Cell, Dr. Meyer argues that an intelligent designer, and not natural processes is the best explanation for the origin of animals found in the Cambrian strata.