Nothing quite like blubber: Polar bears have few options as global heating makes seal-hunting more difficult.

Journal of Experimental Biology  

"Polar bear with seal kill, Baffin Island" by vtluvbug79

As Arctic sea ice disappears, polar bears will lose access to their preferred prey – highly caloric seals. The authors say that, on land, a polar bear would need to eat about 1.5 caribou, 37 Arctic char, 74 snow geese, 216 snow goose eggs, or 3 million crowberries to get the digestible energy they now get from the blubber of one adult ringed seal. Read the full study here.

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Can polar bears and narwhals cling on as the ice shrinks?