Image for Penguins can fly

Penguins can fly

Duration: 01:57

Female emperor penguins returning from a summer at sea are sleek and fat.

Available since: Tue 22 Nov 2011

This clip is from

Frozen Planet Winter

5/7 The story of the few extreme survivors who remain in the polar regions during winter.

First broadcast: 23 Nov 2011

Image for Winter Not currently available on BBC iPlayer

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