Image for Hunters on the lookout

Hunters on the lookout

Duration: 02:40

Working as a team makes killer whales extremely effective.

Available since: Wed 2 Nov 2011

This clip is from

Frozen Planet Spring

2/7 Spring arrives in the polar regions, and the sun appears after an absence of five months.

First broadcast: 02 Nov 2011

Image for Spring Not currently available on BBC iPlayer

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