BBC Earth

Episode 1 – The Blue Planet


Episode 1 – The Blue PlanetEpisode 1 – The Blue Planet

Despite two-thirds of our planet being covered by water, the oceans and many of their inhabitants remain an unexplored mystery. This first episode travels to the very depths of the seas to reveal a spectacular variety of life – from alien monsters of the deep to pack-hunting killer whales attacking a grey whale calf.