The Living Planet: Season 1, Episode 11

1 - 11: The Open Ocean

David Attenborough explores the ocean, which covers 70 per cent of the Earth's surface. It contains extraordinary creatures like the leafy sea dragon, the narwhal, the 'unicorn of the sea', and the whale shark. It has kelp forests, coral reef jungles, the cold black permanent night of the deep sea and affects our oxygen and weather.