He is most interested in evolutionary biology and takes an interdisciplanry approach in his research by incorporating phylogenetics, phylogeography, speciation, population genetics, and genomics. Dr. Lemmon's empirical research focuses on reptiles and amphibians and often collaborates with his wife, Emily Moriarty-Lemmon (also a FSU faculty member), to study amphibian speciation. In addition to his research he has created EvoTutor, educational software to help teach concepts of evolution.