Yesterday +1 : Frozen Planet
David Attenborough travels to the Arctic and Antarctic to explore the wildernesses at Earth's poles, investigating the wildlife and geographical features found there. He begins by travelling to the North Pole, where two polar bears reveal a surprisingly tender side to their characters, before heading to the South Pole - 100 years after Roald Amundsen and Robert Falcon Scott first reached it.
A polar bear hunts with her cubs, while the warmer weather of spring accelerates a process that will eventually see an area of ice the size of Australia disappear into the Arctic Ocean. A woolly bear caterpillar emerges from the snow after spending the winter frozen, and in Antarctica male Adelie penguins arrive to begin constructing nests in fierce storms as they try to attract mates.