Free will explored. Laurie Taylor talks to Julian Baggini, writer and Founding Editor of The Philosophers' Magazine, about his latest work which considers the concept of freedom. He argues against the idea that free will is an illusion due to a combination of genes, environment and personal history. Instead he posits a sliding scale of freedom which allows for the possibility of individual agency and responsibility. Also, pets as family: Nickie Charles, Professor and Director of the Centre for the Study of Women and Gender at Warwick University, discusses her study of kinship across the species barrier.

Producer: Jayne Egerton.