I am an evolutionary biologist interested in symbiosis, particularly host-microbe relationships. All multicellular eukaryotes serve as habitats for microbial lineages, which in turn have opened up new adaptive trajectories for their hosts. Vertebrates, for instance, harbor diverse communities of microorganisms that have become deeply integrated with their hosts’ metabolic, immune, and neuroendocrine systems. Despite the ubiquity and profound effects of these interactions, many fundamental questions remain unanswered. Which microorganisms coevolve with hosts? What are the genetic bases of the intimate partnerships between host and microbial lineages? How have microorganisms shaped host adaptation and diversification? My research is aimed at answering these and related questions through a combination of observational and experimental studies in the field and in the lab. I have worked on a diversity of systems, including mammals, reptiles, amphibians, and birds, and am always looking for ways to apply new technologies and methods to old problems in EEB.