A couple of weeks ago, scientists revealed that they found a ‘city’ of octopuses in Jervis Bay on Australia’s eastern coast. The octopuses were seen living together, communicating, and starting fights. Dubbed ‘Octlantis’, this is the second octopus ‘city’ to be discovered – the first, ‘Octopolis’, was found nearby in 2009. The fact that Octopolis is not unique is causing scientists to rethink octopus social behaviour. Peter Godfrey-Smith is a co-author of the study. He is Professor of History and Philosophy of Science at the University of Sydney and has taught philosophy at Stanford, Harvard and the Australian National University. He has also held the position of Distinguished Professor of Philosophy at the Graduate Center, City University of New York. He is the author of five books – the most recent being Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness.