There are trillions of bacteria and other microorganisms living in your intestines and other places, but don’t be alarmed. These microbes form your microbiome and they are supposed to be there. In this episode, we talk to Dr. Erin McKinney and Dr. Diana Lafferty about what the gut microbiome is, how it varies among animals, and what we can learn about an animal’s ecology and the environment they live in by using metagenomics to study the gut microbiome.