Stunning footage of Sailfish three metres long closing in on Prey. Ever the resourceful hunter, they will only use just enough energy to make their kill, never wasting a fin stoke. What is more remarkable is how they can change colour to warn its companions or confuse its prey. Subscribe: http://bit.ly/BBCEarthSub Taken From Planet Earth WATCH MORE: New on Earth: https://bit.ly/2M3La96 Oceanscapes: https://bit.ly/2Hmd2kZ Wild Thailand: https://bit.ly/2kR7lmh 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 astounding, entertaining, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. This is a commercial channel from BBC Studios. Service & Feedback https://www.bbcstudios.com/contact/contact-us/