translation.en: There are corals made of different forms of calcium carbonate growing off the basalt of this massive undersea mountain, and the dark sort of stuff, those are fossilized corals, and we're going to talk a little more about those as we travel back in time.
translation.zh: 这些珊瑚由不同形式的碳酸钙组成， 在这个巨大的海底山峰的 玄武岩上茁壮生长， 那些颜色很黑的东西， 就是变成化石的珊瑚， 让我们回到过去， 更仔细聊聊这些珊瑚的故事。