The bobtail squid have Vibrio fischeri living in them as well.

短尾乌贼体内也有费氏弧菌。

So they develop this special organ where they host Vibrio fischeri.

所以他们开发了这个特殊的器官， 在那里他们寄宿了费氏弧菌。

That's where Vibrio fischeri glow-in-the-dark gene comes in.

这就是费氏弧菌的夜光基因发挥作用的地方。

(professor) Now, what's got some of us who aren't marine biologists so excited about Vibrio fischeri is that we figured out which genes, which part of their DNA, allow them to glow in the dark.

（教授）现在， 让我们这些不是海洋生物学家的一些人对费氏弧菌如此兴奋， 是因为我们弄清楚了哪些基因，即它们 DNA 的哪些部分， 可以让它们在黑暗中发光。

And the angler fish has this long dangly thing that sticks out in front of it that's full of Vibrio fischeri that gives off just enough light to attract prey but not so much as to illuminate itself.

琵琶鱼有一个长长的垂下来的东西伸出在它的前面， 它充满了费氏弧菌， 它发出的光刚好足以吸引猎物， 但又不足以照亮自己。