Earthsounds
Season 1, Episode 6: Polar Worlds
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In subzero conditions, emperor penguins use custom calls to find their families. After dark, the northern lights make mesmerizing music.
All Episodes - Season 1
Episode 1
Australian Forests
Episode 2
The Himalayas
Episode 3
The Rainforests
Episode 4
The Pacific
Episode 5
African Plains
Episode 6
Polar Worlds
Episode 7
African Deserts
Episode 8
Atlantic Coasts
Episode 9
Winter Woodlands
Episode 10
African Water Worlds
Episode 11
Shallow Seas
Episode 12
Listening to Our Planet