- The arrival of predation was a seismic shift in the ancient seas.
捕食者的出现 是古代海洋中的一次颠覆性转变 - The hunted had to adapt
猎物必须适应变化 - or risk extinction.
否则就会面临灭绝的风险 - And one group adapted in a way never seen before.
有一群生物以前所未见的方式 适应了这种转变 - Despite being single animals,
尽管是单独个体的动物 - they were able to separate into layers of individuals,
但还是能够分离成数层个体层 - that then broke free.
然后独♥立♥出来