Dominique Lestel is an associate professor in the Department of Cognitive Science at the École Normale Supérieure, Paris. He is a founding member and part of the Archives Husserl Research Center and, with Thierry Bardini, is coauthor of Journey to the End of the Species.

Gary Steiner is professor of philosophy at Bucknell University. He is the author of Animals and the Limits of Postmodernism; Anthropocentrism and Its Discontents: The Moral Status of Animals in the History of Western Philosophy; and Animals and the Moral Community: Mental Life, Moral Status, and Kinship.