The Blue Planet - Season 1 - Eps 4: Frozen Seas
An environment where only the toughest survive, the Arctic and Antarctic are unrelenting habitats. Only in spring does life begin again. Plankton blooms and feeds fast hordes of migrating fish, walruses rake the seabed for clams, and minke and humpback whales gorge themselves on gigantic swarms of krill. But it is a brief spring feast - the ice soon returns and pushes life back into the ocean.
About The Blue Planet

Title: The Blue Planet
First Air Date: 2001-09-12
Last Air Date: 2001-10-31
Status: Ended
Rating: 8.326/10 (from 351 votes)
Language: EN
Seasons: 2
Total Episodes: 8
Network: BBC One
Genres: Documentary
Production Companies: Discovery, BBC, BBC Television Centre
Synopsis
Sir David Attenborough narrates this critically acclaimed series that dives deep into the marine environment of Planet Earth. Although two-thirds of the world's surface is covered with water, scientists know less about the oceans than they do about the surface of the moon. This limited series travels from various coasts to the poles to examine watery denizens ranging from the gigantic blue whale to microscopic coral polyps.
Cast

David Attenborough
Self - Narrator (voice)