Polar Bear and Gordon Buchanan
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Wildlife film-maker's close call with a polar bear

4 January 2013 Last updated at 11:11 GMT

Scottish wildlife cameraman Gordon Buchanan risked his life to follow a wild polar bear family over three seasons.

He told BBC Breakfast about one of his encounters which he described as "terrifying".

The Polar Bear Family & Me starts on Monday 7 January at 2130 on BBC Two.