Original air date: 15 January 2003
Above is a graphical presentation of a timeline for the episode, a more detailed text version is below
Selected material
Territorial disputes among sea lions
Notice how the camera crew seems to have sacrificed a camera to get the frame on the left (11’12) !
Dolphin co-operation
Co-operation among dolphins in murky waters, must be accomplished using sound, and gulls predicting the outcome – they gather at the right spot
The blue whale
While Attenborough describes the mechanical and physiological problems solved by the blue whale construction its body is reconstructed by computer graphics (left). The frame on the right shows the famous sequence of Attenborough experiencing seeing a blue whale surfacing.