We're joined by Helen Scales—marine biologist, broadcaster and author of Poseidon’s Steed—to discuss watery lairs, submariners, cephalopods and more, with a nautical soundtrack. Eyeball washed up on Florida beach 'probably from large swordfish' A World Without Coral Reefs The Rime of the Modern Mariner Moby Dick Big Read Mind Game The Life Acquatic Leafy seadragon Tracklist Lisa Hannigan – Ocean and a Rock Villagers – The Waves Kings of Convenience – Cayman Islands Sigur Rós – Starálfur The Beatles – Octopus’s Garden Thorny Seahorse by Tom Weilenmann Leafy Sea Dragon by Nathan Rupert Send feedback and comments to show@scienceoffiction.co.uk.