Science and fiction are two very different ways of understanding life, but sometimes making the distinction can be difficult. Wade Davis (United States), anthropologist, ethnobotanist, author and photographer who works with different indigenous cultures; and Miguel Pita, a Doctor of Genetics and Cellular Biology from UAM (Spain) and also director of a number of short films and documentaries, will talk about the situations and stories in which science seems stranger than fiction. In conversation with Gabrielle Walker.