It's a well-known fact that octopuses have eight arms. But did you know that each arm contains its own 'mini brain'? Museum curator Jon Ablett explains how this arrangement benefits these beguiling marine animals. Discover more examples of octopuses' remarkable abilities: http://bit.ly/NHM-Octopus-surprises-YT ---------------- The Natural History Museum in London is home to over 80 million specimens, including meteorites, dinosaur bones and a giant squid. Our channel brings the Museum to you - from what goes on behind the scenes to surprising science and stories from our scientists. Subscribe to our channel for the latest films and live broadcasts about the natural world null Website: http://www.nhm.ac.uk/ Twitter: http://twitter.com/NHM_London Facebook: http://fb.com/naturalhistorymuseum Instagram: http://instagram.com/natural_history_museum