Polar Bears Suffering as Arctic Summers Come Earlier, Study Finds: "Female polar bears weigh nearly 150 pounds (65 kilograms) less on average than they did 25 years ago, because the ice on which they hunt is melting earlier, research shows."
22 septiembre 2006
Polar Bears Suffering as Arctic Summers Come Earlier, Study Finds
Polar Bears Suffering as Arctic Summers Come Earlier, Study Finds: "Female polar bears weigh nearly 150 pounds (65 kilograms) less on average than they did 25 years ago, because the ice on which they hunt is melting earlier, research shows."
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