the nudibranch has room for improvement... 裸鳃仍有改进的空间
the missing ingredient for animal life to exist... 这是动物生命存在不可或缺的元素
Volcanoes had been erupting for millions of years. 火山已经喷发了数百万年
and the very first fights for survival... 以及我们这个非凡的星球上
continue to support life, just as they have for billions of years. 数十亿年如一日 持续支撑着生命
She'll protect them in the nest for many months, 它会在巢穴中保护它们达数月之久