Frogs are a highly diverse group that exhibit a wide variety of activity periods, ecologies, life history characteristics, and behaviors. These factors are known to influence the evolution of visual systems in other vertebrates, but have not been well studied in frogs. This project aims to characterize spectral, genetic, and morphological diversification of the visual system in frogs as it relates to these major transitions. This is a joint NSF-NERC funded project led by Matthew Fujita (UT Arlington), Rayna Bell (NMNH), and Jeff Streicher (NHM).