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There’s an incredible slide show on the BBC’s Earth News of polar bears on Canada’s Coats Island climbing sea cliffs in search of nesting seabirds and their eggs.
Not something anyone has seen before, even though researchers have been studying this breeding site since the 1980s.
The researchers surmise the bears are opportunistically looking for new food sources, perhaps as their old ones, notably ringed seals, recede alongside the ice.