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Published online 20 December 2005 | Nature | doi:10.1038/news0051219-6
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Drowning polar bears worry researchers
Evidence hints that bear populations are on thin ice.
Reports this week claimed that polar bears were being forced by climate change into cannibalism and attempting suicidal swims. Experts say it is too early to be sure, but that these are the kind of impacts expected as melting sea ice leaves the bears with longer distances to travel.
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