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WWF: Melting Sea Ice-Forces Polar Bears to Swim Longer

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WWF: Langstreckenschwimmen bringt Eisbären in größere Ertrinkungsgefahr wegen Erschöpfung oder rauer See. Junge sind aufgrund ihres geringeren Körperfetts und ihrer geringeren Energiereserven einem noch höheren Risiko ausgesetzt, an Unterkühlung zu sterben.

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