Nature's great events. Episode 1, The great melt / narrated by David Attenborough ; producer, Justin Anderson ; series producer, Karen Bass ; a BBC/Discovery Channel co-production in association with Wanda Films ; BBC Earth.
The summer melt of Arctic ice provides opportunities for millions of animals, including narwhal, beluga whales, families of Arctic foxes and vast colonies of seabirds. But for polar bears it's the toughest time of year. The melting ice makes it harder for them to hunt and threatens their surviv...
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