Why does the world appear different when we’re in love? How can one colour make us feel anger and another calm? Why do sounds like chewing and yawning cause emotional distress for some people? Aristotle said that there were five senses but scientific research suggests that there could be many more than that, with some studies claiming that there are up to 52. On this episode we’re joined by Ashley Ward, Professor in Animal Behaviour at the University of Sydney. In discussion with zoologist and broadcaster Lucy Cooke, he explores some of the fascinating findings in his brand new book, Sensational: A New Story of Our Senses, and the mechanisms at the heart of how we navigate the world. ... Did you know that Intelligence Squared offers way more than podcasts? We’ve just launched a new online streaming platform Intelligence Squared+ and we’d love you to give it a go.  It’s packed with more than 20 years’ worth of video debates and conversations on the world’s hottest topics. Tune in to live events, ask your questions or watch back on-demand totally ad-free with hours of discussion to dive into for just £14.99 a month. Visit intelligencesquaredplus.com to start watching today.  Learn more about your ad choices. Visit podcastchoices.com/adchoices