Getting up close and personal with an iconic polar species using some innovative and sometimes comical filming equipment.
David Tennant narrates as we watch the bears up close in Svalbard, Norway.
The technology used to film this stunning series helped gather some incredible images.
See more of Gordon Buchanan's mobile bear hide 'Ice Cube'.
Take a look at some spectacular images from Gordon Buchanan's Polar Bear Family & Me.
The Operation Iceberg team follow the epic journey of an iceberg out at sea.
Knut was an incredible polar bear, raising awareness worldwide.
We went to the ends of the earth for this to test your Arctic and Antarctic knowledge.
What can be more inhospitable than the cold, white emptiness of the frozen polar tundra.
The Frozen Planet showcases some of the world's harshest environments.
Polar pictures from the programme Vanishing Antarctic.