In the Pacific, a tiny island 300 miles away from the shore hides a giant mountain beneath the waves that forms a home for thousands of plankton feeding fish. These fish attract Tuna, and the Tuna attract thousands of Sharks. Watch this video to learn more about this fascinating food chain, and hear some weird but true facts about the visiting Hammerhead Sharks Taken From Blue Planet Series 1 Subscribe to the BBC Earth YouTube channel: www.youtube.com/subscription_center?add_user=BBCEarth BBC Earth YouTube Channel: www.youtube.com/BBCEarth BBC Earth Facebook www.facebook.com/bbcearth BBC Earth Twitter www.twitter.com/bbcearth BBC Earth Instagram www.instagram.com/bbcearth/?hl=en Visit www.bbc.com/earth/world for all the latest animal news and wildlife videos This is a channel from BBC Worldwide who help fund new BBC programmes.