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Image caption The octopus moves in to investigate the bait on the lander. The deepest ever sighting of an octopus has been made by cameras on the Indian Ocean floor. The animal was spotted 7,000m down in the Java Trench - almost 2km deeper than the previous reliable recording. Researchers, who report the discovery in the journal Marine Biology , say it's a species of "Dumbo" octopus. The name is a nod to the prominent ear-like fins just above these animals' eyes that make them look like the 1940s Disney cartoon character. The scientist behind the identification is Dr Alan Jamieson. He's pioneered the exploration of the deep using what are called "landers". These are instrumented frames dropped overboard from research ships. Full story

29 May