Until 03/01/2009 BBC Two Wales (analogue) was known simply as BBC Two Wales. BBC Two Wales (digital) was BBC 2W. From 03/01/2009 BBC Two Wales schedules on both analogue and digital became identical

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BBC Two is a TV channel that started broadcasting on the 20th April 1964.

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Nature's Microworlds

Steve Backshall

Doug Mackay-Hope

Wendy Darke

Cerys Griffiths

Nick Shearman

Bronwen Thomas

Nature's Microworlds: Episode 10: Yellowstone

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Yellowstone

Episode 10

Episode 10: Yellowstone

BBC Four - Nature's Microworlds, Yellowstone

Steve Backshall looks for the answer to a puzzle involving wolves and beavers.

In Yellowstone National Park, where wolves, bears, coyotes, bison and elk roam vast grasslands, wetlands and forests, Steve Backshall looks for the answer to a puzzle.

In the spectacular Yellowstone where wolves, bears, coyotes, bison and elk roam vast grasslands, wetlands and forests, Steve Backshall looks for the answer to a puzzle. Wolves and beavers have little to do with each other so why, when wolves were returned after an absence of 70 years, did the beaver population increase? The revelation is as magical as it is surprising.

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Knowledge, arts, music and culture from the UK and the world.

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.

Series in which Steve Backshall looks at some of the world's most iconic ecosystems.

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Nature's Microworlds

Episode 10: Yellowstone

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