It is difficult to imagine a more profound testimony to design than the delivery of a fully developed baby that, only nine months ago, was a single cell. The degree of regulatory control and informational complexity of the process that drives embryonic development is far beyond human comprehension. Few biological phenomena are as gripping and awe-inspiring as the process of reproduction and the development of a baby in utero. The signature of design here is unmistakable, for so much of the process—from conception to delivery—depends on foresight and planning.