Life Stream - Narrated by Cillian Murphy 

In this landmark series, the BBC Natural History Unit explores a vast ocean that stretches nearly 10,000 miles, from Arctic to Antarctic and from sun-drenched tropical reefs to crushing abyssal depths. Over three programmes it reveals the amazing, surprising and resilient inhabitants of the Atlantic, both animals and people, as they pit themselves against the world’s wildest ocean.

Narrated by Cillian Murphy, the first programme, Life Stream, follows the Gulf Stream - a massive ocean current travelling thousands of miles across the North Atlantic.

Huge gatherings of whales gorge on fish beneath the Northern Lights, giant turtles chase monstrous jellyfish and fishermen battle for survival in mountainous seas. This extraordinary current is a migration super-highway and brings fertility to the ocean, but it also warms Northern Europe, even keeping part of the Arctic Ocean free of ice in winter. Everywhere it flows, the Gulf Stream helps to drive life.

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