translation.en: It's got these jewel-like light organs on its belly that it uses for a type of camouflage that obliterates its shadow, so when it's swimming around and there's a predator looking up from below, it makes itself disappear.
translation.zh: 它在腹部发出这些珠宝般的亮光， 来当作一种保护色， 因为这种亮光能使它的影子消失。 当有捕食者从下往上看这条游鱼时， 它能让自己消失。