Polar Bears

A female polar bear (R) and her two two-year cubs stand at Cape Blossom on the Isle of Vrangel in this 2002 archive picture. Russia's polar bears are adapting their behaviour to overcome the "catastrophic effects" of global warming, but new migration routes are pushing them dangerously close to humans, a leading researcher said. Picture taken in 2002. REUTERS/International Fund for Animal Wellfare/Nikita Ovsyanikov (RUSSIA ANIMALS ENVIRONMENT) NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS