Our research focuses on the fossil record and evolution of mammals and their relationship with habitat and climate change. We are particularly interested in mammalian teeth, how they form, how they work, how they wear down, and how their shapes evolve in evolutionary time. The distribution of functional traits allows us to model and understand the quantitative relationship between animal communities and their environments, an approach known as ecometrics. Our research relies on quantitative data analysis, including data from the NOW database that is coordinated in our group. A recent, emerging focus is the ecometric study of early human environments.