Image for Echolocation lifeline

Echolocation lifeline

Duration: 02:00

Narwhals use sound to map vital air holes in the ice.

Available since: Mon 22 Aug 2011

Credits

Series Producer
Mark Brownlow
Series Producer
Phil Chapman
Narrator
Stephen Fry
Producer
Phil Chapman
Executive Producer
Sara Ford

This clip is from

Ocean Giants Voices of the Sea

3/3 Documentary taking a look at whales and dolphins, nature's supreme vocalists.

First broadcast: 28 Aug 2011

Image for Voices of the Sea Not currently available on BBC iPlayer

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