Kim Sterelny is Professor of Philosophy at Australian National University and Victoria University of Wellington. His books include Language and Reality (with Michael Devitt; second edition, MIT Press).

Richard Joyce is Professor of Philosophy at Victoria University of Wellington and author of The Evolution of Morality (MIT Press, 2006) and The Myth of Morality (Cambridge University Press, 2001).

Brett Calcott is a Postdoctoral Researcher at the ASU/SFI Center for Complex Biosocial Systems in the School of Life Sciences at Arizona State University and coeditor (with Kim Sterelny) of The Major Transitions in Evolution Revisited (MIT Press, 2011).

Ben Fraser is a Postdoctoral Research Fellow in the Philosophy Program at Australian National University.

Richard Joyce is Professor of Philosophy at Victoria University of Wellington and author of The Evolution of Morality (MIT Press, 2006) and The Myth of Morality (Cambridge University Press, 2001).