Even its young, barely half its size, are fearsome predators. 即便在幼年期 仅有一半大小 也是可怕的捕食者

270. This is Dunkleosteus...
     这是邓氏鱼
271. a descendant of the tiny Arandaspis.
     是微小的阿兰达甲鱼的后代
272. But at nine meters long, this fish is no underdog.
     但这身长九米的鱼绝非弱者
273. Even its young, barely half its size, are fearsome predators.
     即便在幼年期 仅有一半大小 也是可怕的捕食者
274. And this juvenile has spotted something out in the blue.
     这条幼鱼在蓝色的海洋中有所发现
275. Ammonoids,
     菊石
276. close relatives of today's deep-sea nautilus.
     今天深海鹦鹉螺的近亲

来自《我们星球上的生命 第一季 第二集 Life on Our Planet S01E02 第一前线》第 273 行