Steven Biller is an assistant professor in the Department of Biological Sciences at Wellesley College. His research seeks to decipher the cellular and genetic mechanisms through which marine microbes interact with each other and their environment and examines how these interactions shape emergent community functions. A recent area of focus for the Biller lab is exploring the ecological and evolutionary roles of bacterial extracellular vesicles in the oceans. He received his bachelor’s degree in biology from Williams College and a doctorate in biological sciences from Stanford University, where his thesis focused on bacterial cell cycle regulation. At Stanford, he carried out postdoctoral work on ammonia-oxidizing archaea, then studied diverse aspects of the marine cyanobacterium Prochlorococcus as a postdoctoral researcher and research scientist at the Massachusetts Institute of Technology.