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A female polar bear emerges from her den beneath the snow … Three young cubs. David Attenborough, Frozen Planet II: Spring, BBC 2011
Early autumn in the Canadian Arctic and polar bears are gathering on the coastal strip waiting for the sea to freeze. David Attenborough, Frozen Planet IV: Autumn
It’s surprising just how sociable polar bears can be. ibid.
He [polar bear] must catch a seal about once a week. David Attenborough, Nature’s Great Events, BBC
For polar bears it’s the survival of the fattest. ibid.
There are bigger predators here than foxes: polar bears. David Attenborough, The Life of Mammals VII: Return to the Water, BBC 2002
A few miles from the coast the ice is already splitting. Now the mother can start hunting for the seals they must have but she’s leading her cubs into a dangerous new world. Nearly half of all cubs die in their first year out on the ice. David Attenborough, Planet Earth: Pole to Pole, BBC 2006
The polar bear cubs emerge from the den in which they were born. Their mother stretches her legs after five months under the snow. They are just two months old and instinctively follow her lead. David Attenborough, Planet Earth: Ice Worlds
As the ice disappears, sea birds return to the high Arctic. ibid.
At the height of summer the sun never sets. ibid.
The polar bear’s world is literally melting away. Attenborough Explores ... Our ... Fragile World, BBC 2009
The polar bear is the world’s largest terrestrial carnivore. Oceans VIII: Arctic Ocean, BBC 2008
Polar bear … is quite comfortable even at minus forty. Earth’s Greatest Spectacles II: Svalbard, BBC 2016