How did the incredible diversity of living organisms on Earth arise and what principles have shaped this history? How do organisms adapt to specific environmental conditions or fluctuations in those conditions?  It's these types of questions, and many others, that are being asked by members of our department.  Whether empirically or theoretically based, integrating from the microscopic sub-cellular levels of genes and genomes to those of entire populations and/or species is a hallmark of our department's approach to evolutionary research.