This specialist hunter knows just how dangerous their prey can be. To solve this problem, they hypnotise crabs by changing the colour of their skin. Subscribe: http://bit.ly/BBCEarthSub #BluePlanetII Watch more: Planet Earth http://bit.ly/PlanetEarthPlaylist Blue Planet http://bit.ly/BluePlanetPlaylist Planet Earth II http://bit.ly/PlanetEarthIIPlaylist Planet Dinosaur https://bit.ly/PlanetDinosaurPlaylist Taken From Blue Planet II This bold cinematic experience takes viewers on a magical adventure across the greatest, yet least known, parts of our planet – our oceans. Since Blue Planet aired in 2001, our understanding of life beneath the waves has completely changed. Travelling from the icy polar seas to the vibrant blues of the coral atolls, this series shares these astonishing new discoveries. Meet the strange octopuses lurking in the depths of the Antarctic Ocean. Watch giant trevally fish leap to catch birds in mid-air. And ride on the back of a hammerhead shark as it attacks. Inspiring awe and wonder, Blue Planet II reveals surprising new places, charismatic new characters and extraordinary new behaviours. Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register This is a commercial page from BBC Studios. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx