Polar bear

Polar animals race to rear their young during times of plenty under the midnight sun.

David Attenborough examines the frozen worlds of the Arctic and Antarctic.

Following the sun's seasonal journey and how it affects the lives of all creatures.

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

Autumn brings epic journeys for polar wildlife as most hurry to escape the refreeze.

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

Caroline Quentin narrates a tale of animals born in some of the coldest places on Earth.

Looking at the Arctic and Antarctic, the greatest and least-known wildernesses of all.

Spy cameras get closer than ever to the world's greatest land predator, the polar bear.

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