Sean B. Carroll is Professor of Molecular Biology and Genetics and an Investigator at the Howard Hughes Medical Institute at the University of Wisconsin - Madison. Among the most prominent biologists working in the world today, Carroll is a member of the National Academy of Sciences, an award-winning author of two highly acclaimed books on science for the general public (Endless Forms Most Beautiful and The Making of the Fittest), a widely known charismatic public speaker, an ardent advocate for science education, and a frequent guest on NOVA and other popular television and radio programs. He is the author or co-author of more than 100 scientific papers on animal development and evolution and of two textbooks.