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Study: Melting Sea Ice Spells Death for Polar Bears

Sea ice in the Arctic is melting faster than predicted, which is bad news for polar bears that hunt, mate and raise their young on the ice. A new study looks at the impact of ice loss on their health. Co-author Merav Ben David, who was among a team of University of Wyoming researchers whose field work in the Arctic is the basis for the new study, said that "many colleagues, even some on our own research team, doubted whether the study was possible, until we actually did...

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