Joanna Radin is Assistant Professor in the Program in History of Science and Medicine at Yale University. Emma Kowal is Professor of Anthropology at Deakin University, Melbourne. Joanna Radin is Assistant Professor in the Program in History of Science and Medicine at Yale University. Emma Kowal is Professor of Anthropology at Deakin University, Melbourne. Charis Thompson is Associate Professor of Rhetoric and Women's Studies at the University of California, Berkeley. She is the author of Making Parents- The Ontological Choreography of Reproductive Technologies (MIT Press)