Book excerpt: If animals evolved through natural selection, then our bodies are undoubtedly home to numerous "evolutionary leftovers" known by the technical name "vestigial organs." While the existence of vestigial organs used to be a primary evidence used to support evolutionary theory, actual research into the design and function of the body show that these are not functionless leftovers, but are part of a coherent design. In this book, Jerry Bergman walks you through the anatomy of these "vestigial organs" and shows the important roles they play. Ignorance of how the body works can no longer be used as evidence that it was not designed.