Essays by leading scientists, including Edmund Brodie III, James Curtsinger, Ted Daeschler, Douglas Emlen, Harry Greene, Luke Harmon, Hopi Hoekstra, Daniel Lieberman, Jonathan Losos, Axel Meyer, Teri J. Orr, Naomi Pierce, David C. Queller, Neil Shubin, David Reznick, Michael Ryan, Marlene Zuk, and Carl Zimmer. Foreword by David Quammen.