Barbara Ehrenreich is a renowned social critic and most recently the author of Blood Rites: Origins and History of the Passions of War, as well as eight other books. Her much discussed essays and articles have appeared in major newspapers and magazines around the country. The recipient of several prestigious writing awards, she is currently a regular essayist for Time Magazine and a columnist for The Guardian in Great Britain. She holds a Ph.D. in biology from Rockefeller University.

Dr. Amy Parish is a Biological Anthropologist, Primatologist, and Darwinian Feminist who has taught at University of Southern California in the Gender Studies, Arts and Letters, and Anthropology programs and departments since 1999. She received her undergraduate training at University of Michigan and her graduate school education at University of California-Davis and then taught at University College London. She conducted post-doctoral research at the University of Giessen in Germany on the topic of reciprocity.