Listening in on a beluga back scrub

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Duration: 01:57

As hundreds of white whales gather in an Arctic estuary for their annual moult, Elizabeth White listens to their underwater chat.

Elizabeth White is a director on Frozen Planet, the ultimate portrait of the Earth's Polar Regions.

Frozen Planet will be broadcast in 2011 on BBC One.

Available since Tue 17 Nov 2009

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Frozen Planet

The ultimate portrait of Earth's polar regions: the last great wilderness on the planet.

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