- With the world made up of nothing but toxic air and rivers of molten rock...
当时的世界只有 有毒气体和熔岩河流 - life as we know it was impossible.
我们所知的生命不可能存在 - But out in the prehistoric seas,
但是在史前的海洋中 - something is stirring.
有一些情况正在酝酿 - Beneath the surface hangs a great swathe of plankton.
水面下漂浮着大量浮游生物 - Microscopic cells like these have just evolved something new,
这样微小的细胞 刚刚进化出了一样新的东西 - photosynthesis.
光合作用