- Despite their great size, we still have little idea of where they travel in the vast oceans
撇开体积不论, 我们仍然不知道它在这广袤的海洋中去哪里旅行
- and none at all of where they go to breed.
也不知道它们去哪里繁殖
- The largest animal on Earth feeds almost exclusively
这地球上最大的动物只有一种主食
- on one of the smallest krill, shrimp-like crustaceans.
一种非常小的甲壳类动物-磷虾
- They take many tons of water into their ballooning throats in a single gulp and sieve out what it contains.
它们一口可吃进几吨的海水 然后再过滤出想要的东西
- Every day, each one swallows some four million krill.
每天一头蓝鲸可以吃进400万条磷虾
- Such gargantuan harvests depend on the continuing fertility of the oceans
这样巨大的食量依赖富饶的海洋的不断提供
来自《行星地球 第一季 第十一集 Planet Earth S01E11 海洋深处》第 297 行