An Arctic fox made an epic 4400-kilometre-long journey over sea ice
25 June 2019
In 2018, a satellite-tracked Arctic fox migrated across sea ice from Svalbard to northeast Canada – but repeat journeys may soon be impossible as the poles warm
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Premium
Field notes: Polluted polar bears await the great Arctic land grab
20 September 2018
As global warming melts the Arctic, all eyes are turning to the riches under the ice. But will polar bears survive the pollutants trickling into the food chain?
Polar bears waste lots of their energy and it could be a problem
1 February 2018
We thought polar bears had neat tricks for conserving energy in lean periods, but it turns out they are not that thrifty, which could cause them trouble in the future
Polar bear attacks on people set to rise as climate changes
14 July 2017
Dwindling sea ice is driving hungry bears on to land and towards human settlements
Narwhals could help us measure melting glaciers underwater
18 May 2017
A project off Greenland will tag whales with sensors to measure sea temperatures and ice melt in hard-to-reach places, improving predictions of sea-level rise
Polar bears shift from seals to bird eggs as Arctic ice melts
12 May 2017
The habitat overlap of polar bears and their main prey, ringed seals, is disappearing and the bears are instead getting closer to nesting birds
