The dramatic breakup of the Hay River in Canada's Northwest Territories was filmed in late April 2009 for the "unlocked rivers" sequence.
One of the episode's most surprising highlights follows this caterpillar, which can take up to 14 years to reach adulthood by freezing solid every winter and thawing each spring. "Frozen Planet" Spring(2011)
A mother polar bear is shown emerging from her den to hunt with her cubs on the sea ice. The dramatic breakup of the Hay River in
The episode also visits Antarctica to show these birds nursing massive chicks. Production Highlights The episode also visits Antarctica to show these
Used advanced Cineflex and Gyron cameras to capture long-range, steady footage of animals without disturbing them.
The freshwater influx from melting rivers provides essential nutrients for vast shoals of cod and allows narwhals to navigate new cracks in the ice.
The return of light and life to the Arctic and Antarctic, triggering massive thaws and the arrival of millions of migratory animals.