These are what made some of them 这是其中一种

123. gradually sinking downwards.
     逐渐向下蔓延
124. There are faint trails in the ooze,
     海底泥中也有些微的踪迹
125. signs that even here there is life.
     证明即使在这里也有生命存在
126. These are what made some of them
     这是其中一种
127. sea urchins sifting the accumulating drifts.
     海胆,收集并过滤漂流物
128. Shrimps standing on elegant tiptoe fastidiously select the particles that appeal to them
     虾用脚尖优雅地站着, 很挑剔的选择最吸引它们的食物
129. but, in the deep sea, as everywhere else if there are grazers, there are hunters.
     不过海底也和其他地方一样, 既然有吃素的,肯定有吃肉的

来自《行星地球 第一季 第十一集 Planet Earth S01E11 海洋深处》第 126 行