In this channel premiere series wildlife cameraman Gordon Buchanan follows a wild polar bear family over three seasons, something no one has done before.
Little is known about polar bear family life - Gordon Buchanan looks to redress that.
Take a look at some spectacular images from Gordon Buchanan's Polar Bear Family & Me.
See more of Gordon Buchanan's mobile bear hide 'Ice Cube'.
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.
A land of giant icebergs, huge distances and endless snowfields.
Hurtigruten ferries sail the Norwegian coast, travelling through breathtaking scenery.
Read about the Arctic explorers who risked everything to reach the top of the world.
What impact will global warming, holes in the ozone and atmospheric haze have?
Polar bears are the largest land carnivores on Earth.