Like cuttlefish, our spy can communicate through patterns and colours in its skin. When our robot displayed patterns that would indicate it is a female, it attracted some male attention. Spy in the Ocean is available on iPlayer in the UK and will be available on PBS in the US in the autumn. Subscribe: bit.ly/BBCEarthSub #RobotCuttlefish # #SpyInTheOcean Watch more: Planet Earth bit.ly/PlanetEarthPlaylist Blue Planet bit.ly/BluePlanetPlaylist Planet Earth II bit.ly/PlanetEarthIIPlaylist Planet Dinosaur bit.ly/PlanetDinosaurPlaylist 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. This is a commercial page from BBC Studios. Service information and feedback: bbcworldwide.com/vod-feedback--contact-details.aspx