It's not just the future of the whale that today lies in our hands 掌握在我们手里不仅仅是鲸的命运和未来
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
But global changes now threaten the great blooms of plankton on which the whales depend. 但是全球环境的变化 让蓝鲸赖以生存的浮游生物急剧减少
three hundred thousand blue whales roamed the oceans 30万头蓝鲸让海洋看上去充满生气
on one of the smallest krill, shrimp-like crustaceans. 一种非常小的甲壳类动物-磷虾
twice the size of the largest dinosaur. 体积是最大的恐龙的2倍
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
The largest animal on Earth feeds almost exclusively 这地球上最大的动物只有一种主食
so their entire existence will be spent on the move. 所以它们终生都在奔波