Inside Nature's Giants: Polar Bear

The BAFTA Award-winning series returns with a one-off feature-length Arctic special in search of the world's largest land carnivore: the polar bear. The Inside Nature's Giants team of experts join Inuit hunters and scientists studying these iconic creatures off the coast of Greenland. Polar bears have become a symbol of climate change as their habitat is threatened. And at the top of the food chain they are especially vulnerable to physiological side effects from man-made pollutants. Scientists have been monitoring the levels of toxic chemicals found in polar bears for over a decade.