Octopus

Brett Westwood meets an octopus: perhaps the closest thing to an alien life form on earth. Three hearts, copper blood, autonomous arms, a parrot's beak - and a formidable intelligence to match. The sea monster of historical myth is now emerging as an animal worthy of respect and understanding.
Contributors: (in tentacle only) Luna, Giant Pacific Octopus; Rachel Farquar, Aquarist at Bristol Aquarium; Russell Arnott, educational presenter and consultant for Incredible Oceans; Sy Montgomery, author of The Soul of an Octopus and Peter Godfrey-Smith, philosopher and author of Other Minds: The Octopus and the Evolution of Intelligent Life. The reader is Jack Klaff.
Producer Beth O'Dea
Photo of Luna the Giant Pacific Octopus courtesy of Bristol Aquarium.