Now it only has a red light on its head. 现在它仅留一盏头顶的红灯

282. It's hunting for millipedes.
     它在寻找千足虫
283. When it finds the trail of one,
     当它发现可疑踪迹时
284. it switches off its yellow lights.
     便会熄灭黄灯
285. Now it only has a red light on its head.
     现在它仅留一盏头顶的红灯
286. Millipedes can't see red light.
     千足虫看不见红光
287. So, to them, the railroad worm
     所以对它们来说 火车虫已经
288. in stealth mode is virtually invisible.
     切换成了完全隐身的潜行模式

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 285 行