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北极熊在显微镜下看北极熊的毛是一根根小光导管,只有紫外线才能通过。北极熊就充分利用这些小光导管搜集热量。有了这身高级的“太阳能聚热衣”,它们俨然成了冰天雪地的主人。
Polar bears Under the microscope to see the polar bear’s hair is a small light pipe, only the ultraviolet rays to pass. Polar bears make full use of these small light pipes to collect heat. With this advanced “solar collector,” they have become snow-capped owners.