Winnipeg zoo working to help protect polar bears from extinction

A polar bear poses for the camera as he waits for the Hudson Bay to freeze over near Churchill, Man. Wednesday, Nov. 7, 2007. (Jonathan Hayward/ The Canadian Press) A polar bear poses for the camera as he waits for the Hudson Bay to freeze over near Churchill, Man. Wednesday, Nov. 7, 2007. (Jonathan Hayward/ The Canadian Press)

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Ukraine hopes to swap Mariupol steel mill fighters for Russian POWs

Ukrainian fighters extracted from the last bastion of resistance in Mariupol were taken to a former penal colony in enemy-controlled territory, and a top military official hoped they could be exchanged for Russian prisoners of war. But a Moscow lawmaker said they should be brought to 'justice.'