Dr. Nancy Simmons specializes in the morphology and evolutionary biology of bats (Chiroptera). Together with several collaborators, she is developing a data set of morphological characters scored in species representing all major clades of bats. These data include new information gained from high-resolution CT scans of rare bats and are being combined with DNA sequence data to develop a robust higher-level phylogeny for Chiroptera. With collaborators, she is doing an in-depth study of the evolution of megabats – flying foxes and their relatives – using both molecular and morphological data. Dr. Simmons is also working with an expert on echolocation behavior to develop a method for coding features of echolocation calls for phylogenetic analysis.