These fertile waterways became the lifeblood of a new world... 这些肥沃的水道成为新世界的命脉

283. The waterways soon covered more than 1.6 million square kilometers...
     水道很快覆盖超过160万平方公里
284. an area the size of Alaska,
     相当于阿♥拉♥斯加州的面♥积♥
285. creating the largest delta in Earth's history.
     创造出地球历史上最大的三角洲
286. These fertile waterways became the lifeblood of a new world...
     这些肥沃的水道成为新世界的命脉
287. the fuel for evolution.
     进化的源泉
288. Conifers rose to the fore.
     针叶树崛起
289. And for the first time since the Permian extinction...
     自从二叠纪灭绝以来

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 286 行