And if you're a biologist and you know about sharks, and you want to assess, you know, how much jeopardy am I really in here, there's one question that sort of jumps to the forefront of your mind immediately which is -- Diver 1 : What kind of sharks?
如果你是个生物学家，并了解鲨鱼 你就想评估一下自己的处境到底有多危险 所以就有个问题马上跳进你的大脑里 就是—— 视频：哪种鲨鱼？