translation.en: Driven now by sexual selection, some adult fireflies like this proud male evolved a shiny new glow-in-the-dark lantern that would let them take courtship to a whole new level.
translation.zh: 现在来谈谈关于性的选择， 一些成年萤火虫， 像这只骄傲的雄虫， 刚演化出一个在黑暗中闪亮的灯笼， 这个灯笼会让它的求爱 达到一个全新的水平。