Jonathan Balcome is an independent animal behaviour research scientist and a consultant for the Physicians Committee for Responsible Medicine He is the author of Pleasurable Kingdom: Animals and the Nature of Feeling Good, and most recently Second Nature: The Inner Lives of Animals.

This show featured a guest host, Christine Ottery.

Christine Ottery is a journalist and blogger published on and Comment is Free,, and She is also a researcher for George Monbiot and multimedia Science Journalism MA student at City University.