Episode 1
Introduction
Experience the power of the blue whale - the largest mammal ever to grace our planet. Learn how the sun and mo...
Episode 2
The Deep
A place of mountain ranges, perpetual night, pressures extremes and cold... and the weirdest life forms on our...
Episode 3
Open Ocean
In the immense space of the open ocean the sea bed is a staggering five miles below the surface and the neares...
Episode 4
Frozen Seas
An environment where only the toughest survive, the Arctic and Antarctic are unrelenting habitats. Only in spr...
Episode 5
Seasonal Seas
As the days grow longer, billions of microscopic plankton bloom under the blazing sun. Here in the temperate s...
Episode 6
Coral Seas
Bathed in bright sunlight and warm clear water, the coral reef is a rich oasis of life - the rainforest of the...
Episode 7
Tidal Seas
The sun and moon move billions of tons of water with every turn of the tide. The strongest tides empty entire...
Episode 8
Coasts
From rocky cliffs to gentle dunes, the coasts are always changing. Day in and day out, they are battered by cr...