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想像在黑暗的海底

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你連自己的鼻子都看不清楚

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開眼或閉眼沒有差別

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因為陽光照不到這裡

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抬頭一看，你見到亮光

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當你游去一探究竟

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發現一抹藍光在眼前漂蕩

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你覺得自己可以一直這樣看下去

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但你不行

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因為一隻鮟鱇魚正張開大嘴

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將你活生生地一口吞下

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你只是一隻

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太晚意識到生物螢光力量的海底生物

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生物螢光是指

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特定生物體產生光的能力

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人體可以製造耳垢和腳指甲

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但這些生物可以

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將身體一部份變成螢光棒

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好像大自然賦予牠們在派對狂歡的能力

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為什麼呢？

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不論如何

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生物螢光增加個體存活機會

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以螢火蟲為例

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它們發出綠色螢光的能力

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幫助牠們在仲夏吸引伴侶

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但牠們只是諸多發光生物的一員

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鐵道蟲 (phrixothrix hirtus)

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可以發出紅色和綠色螢光

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你會吃這種像是機場跑道的東西嗎？

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其它意識正常的掠食者也不會

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螢光讓毛毛蟲存活下來

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還有一種深海蝦

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學名為 Acanthephyra purpurea

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當牠們面臨威脅時

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會從口中噴出螢光液體

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誰被這種東西噴到不會想要逃走呢？

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而且，螢光還會吸引其它更大型

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想吃蝦子天敵的掠食者

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那如果本身不能發光怎麼辦？

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沒關係

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即使沒有與生俱來的發光工具

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還是有其它方式可以利用螢光

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再讓我們看看

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鮟鱇魚要把你吃下肚前

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牠頭上吊著的發光餌

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這個由一層皮包覆

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並被稱為餌球 (esca) 的東西

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餌球裝著可以發螢光的細菌

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鮟鱇魚自己不能發光

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所以牠們會帶著一袋螢光細菌

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記得螢火蟲嗎？

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牠們是真的會自己發光

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在牠們的小燈籠中

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有螢光素 (luciferin) 和螢光酶 (luciferase) 兩種物質

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當兩者在有氧環境中混合

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並加上生物中用來提供能量的

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腺苷三磷酸 (ATP)

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化學反應會釋放出光能

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有科學家發現螢火蟲

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製造螢光素和螢光酶的祕密

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他們用基因工程技術

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讓原本不能發光的生物體也能發光

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例如：將細胞製造螢光素和螢光酶的基因

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送到煙草中

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一但成功，煙草就會依據

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這些基因上面記載的訊息

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把自己點亮成一株聖誕樹

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生物螢光的美在於

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不同於日光或燈泡

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生物螢光並不會產熱

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它能在生物能忍受的溫度範圍下作用

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而且不會燒死任何生物

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而且不像螢光棒

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會因為裡面螢光物質用盡而變暗

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生物螢光具再生性

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這是科學家們想培養螢光樹的原因

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試想：若將這螢光樹在高速公路旁

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只需要氧氣和

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其它免費、乾淨的資源就能發光

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說到生存優勢

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這能讓我們永續經營環境

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你有想到其它生物螢光的用法嗎？

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手上的螢光棒

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或許可以幫你在舞會中找到伴侶

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但是螢光如何增加你的生存能力？

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如果你是這樣想

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你已經看到創意的火花