Alaska Scientists Work to Save Polar Bears

For decades, humans and global climate change have been threatening the existence of polar bears. Scientists in Alaska are working hard to save as many of them as possible. The zoo in Anchorage, Alaska, has been taking care of orphaned or abandoned polar bears since the 1970s. 15-year-old Ahpun was rescued as a cub by a hunter, who shot her mother after she attacked him. Her mate Lyutyik was born in Russia's St. Petersburg Zoo. Scientists have paired them, hoping they would...

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