translation.en: Well, it seems that when whales were at their historic populations, they were probably responsible for sequestering some tens of millions of tons of carbon And when you look at it like that, you think, wait a minute, here are the wolves changing the physical geography of the Yellowstone National Park.
translation.zh: 在鲸鱼数量繁盛的历史时期 它们估计每年 从大气中 带走数千万吨的碳 综合这些例子，你想想看 等一下，狼群能够 改变黄石国家公园的自然地理