1 Department of Organismic and Evolutionary Biology, and Department of Molecular and Cellular Biology, Harvard University, Howard Hughes Medical Institute, 16 Divinity Avenue, Cambridge, MA 02138, USA. Electronic address: extavour@oeb.harvard.edu.
Interview with Cassandra Extavour, who studies the evolution of the genetic mechanisms employed during early animal embryogenesis to specify cell fate, development, and differentiation at Harvard University.