It took many millions of years before these bright lights evolved into a smart communication tool that could be used not just to ward off potential predators but to bring in potential mates.
这之后又经过了好几百万年的时间， 这些亮光才进化成为 一种聪明的沟通工具， 不止是用来躲避可能的捕食者， 也用来吸引可能的伴侣。