Zachary Moore is a molecular biologist and host of the Evolution 101 podcast. The 38-episode podcast consists of short episodes that are designed to provide a simple explanation of the independent lines of evidence that support the theory of evolution. In this episode, we talk about some of the molecular evidence that supports the conclusion that species evolved from common ancestors. You can find the podcast in various podcast directories, as well as transcripts at http://evolution-101.blogspot.com. And you can follow Zachary Moore on Twitter @drzach.