The technology used to film this stunning series helped gather some incredible images.
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'.
Knut was an incredible polar bear, raising awareness worldwide.
Polar bears are the largest land carnivores on Earth.
With those unmistakable black eyes and ears, pandas are the face of wildlife conservation.
Great Bear Stakeout watches the every move of a population of grizzly bears.