But it's not their size that makes them such a threat. 但它们如此危险 并不是因为其大小

139. The largest, with a shell eight meters long,
     最大的 壳长八米
140. are Cameroceras.
     这就是房♥角石
141. The trilobite is dwarfed by this towering hunter.
     三叶虫在这高耸的猎手面前相信见拙
142. But it's not their size that makes them such a threat.
     但它们如此危险 并不是因为其大小
143. Cameroceras have evolved a new way to catch their prey...
     房♥角石进化出了捕捉猎物的新方法
144. even when they can't see it.
     即便看不见猎物 也能得手
145. Because in these waters, they hunt using not just sight,
     因为在这些水域中 它们捕食不仅利用视觉

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 142 行