Time may be running out for polar bears as global warming melts the ice beneath their paws.
Restrictions or bans on hunting in recent decades have helped protect populations, but many experts say the long-term outlook is bleak.
An estimated 20,000-25,000 bears live about the Arctic – in Canada, Russia, Alaska, Greenland and Norway – and countries are struggling to work out ways to protect them amid forecasts of an accelerating thaw.
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