萤火虫

萨拉·刘易斯（TED演讲：萤火虫的爱情与谎言）过去20年来一直致力于研究萤火虫。她最初的兴趣源于对这种甲虫如何凭空发光的好奇，但探索很快延伸到了更根本的问题：萤火虫是如何交配的，交…

Sara Lewis studies fireflies. And it turns out they’re not just a pretty flashing light on a summer night. She explains how a firefly glows — and how humans are harnessing that glow for health and medical research (and even to make our food safer).