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How Do Fireflies Make Light?
萤火虫是怎么发光的？
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Fireflies make light without heat — this is called bioluminescence.萤火虫发光不发热，这叫生物发光。
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They mix a chemical called luciferin with oxygen.它们将一种叫荧光素的化学物质与氧气混合。
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Another chemical, luciferase, helps speed up the reaction.另一种叫荧光素酶的化学物质能加速该反应。
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This creates light energy very efficiently.这一过程能非常高效地产生光能。
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No energy is wasted as heat — almost 100% light.几乎不产生热量，能量几乎100%转化为光。
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Each firefly species flashes in a unique pattern.每种萤火虫都有独特的闪光模式。
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Males flash to find mates; females answer with their own light.雄虫通过闪光寻找配偶，雌虫以特定闪光回应。
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Scientists study this light to help medical research.科学家研究这种光，助力医学研究。