大煙山國家公園 同步發(fā)光螢火蟲照亮了大煙山國家公園中的森林 同步發(fā)光螢火蟲照亮了大煙山國家公園中的森林

每年的5月下旬到6月中旬，同步的螢火蟲會在大煙山國家公園的森林中匯聚成波光粼粼的，有節(jié)奏的燈光秀。作為兩周交配展示的一部分，雌蟲會與附近的雄蟲同步閃光，從而每隔幾秒鐘就會有一波光波穿過樹林。北美大煙山國家公園（Photinus carolinus）僅是至少19種螢火蟲中的一種，而在地球上其他一些地方，尤其是東南亞，也可以找到同步螢火蟲。

每種螢火蟲都有獨特的閃光模式，可以幫助雄性和雌性彼此識別。在大多數(shù)這樣的物種中，雄性會飛翔并閃光，而雌性通常會保持靜止并以自己的閃光來回應(yīng)。盡管某些假設(shè)涉及飲食，社交互動和海拔高度，但尚不清楚為什么某些螢火蟲會同步閃光。不管他們?yōu)槭裁催@樣做，閃電般的閃電閃爍都是一個神奇的景象，而且有時我們都可以使用一點魔法。

原文:

Every year between late May and mid-June, synchronous fireflies gather into a sparkling, rhythmic lightshow in the forests of Great Smoky Mountains National Park. As part of their 2-week mating display, the female lighting bugs synchronize their flashes with nearby males so that every few seconds waves of light ripple through the woods. While Photinus carolinus is only one of at least 19 species of fireflies that live in Great Smoky Mountains National Park, synchronous fireflies can be found in a few other places on Earth as well, particularly in Southeast Asia.Each species of firefly has a characteristic flash pattern that helps the males and females recognize each other. In most species, like this one, the males fly and flash, while the females generally stay still and respond with a flash of their own. It's not clear why some species of fireflies flash synchronously, although some hypotheses involve diet, social interaction, and altitude. No matter why they do it, the flashing of lightning bugs is a magical sight to see—and we can all use a little magic sometimes.

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注：中文翻譯來自谷歌翻譯API,官網(wǎng)保存自2011年以來的歷史每日必應(yīng)壁紙和故事。