The coldest, the oldest, the first – the filming of the amazing BBC series broke many records for the Natural History Unit.
2,356 days filming in the field – a new record
134 hours diving beneath the ice – at temperatures down to -2C
2,118 dehydrated meals eaten
425 days at temperatures below -15C.
2 million fur seals accompanied during filming
1 visit to the North Pole by Sir David Attenborough – his first time
18 million seabirds filmed in the Bering Sea near Alaska – the greatest concentration on the planet
14 years lifespan of the woolly bear caterpillar, the world’s most long-lived, filmed on Ellesmere Island: it freezes in winter and resumes eating after thawing in spring
9 weeks spent in the company of naïve Arctic wolves with no previous human contact
500,000 Adélie penguins in the Cape Crozier colony filmed during peak breeding season.
-40˚C temperatures experienced during filming in Yakutsk, Siberia – the coldest city on Earth