In fact, a fangtooth is gliding beneath you.

事实上，有只狼牙鱼正在你底下掠过。

These super black, deep-sea fishes have names like anglerfish, dragonfish, and fangtooths.

这些超级黑色的深海鱼有像琵琶鱼、龙鱼和尖牙这样的名字。

So when the fangtooth gazes upwards, you're almost invisible.

所以当狼牙鱼往上注视，你几乎是隐形的。

The fangtooth's skin is ultra-black: it reflects less than 0.5% of the light that hits it, making this fish particularly hard to spot.

狼牙鱼皮很黑，颜色深到受光照时，只反射不到 0.5% 的光，让这种鱼特别难被看到。