He was the biggest creature in the pond, so he was very important.

他是在池塘里非常大的动物，所以他是非常重要的。

youdao

However, there are amphibious penguins and seals and a rich Marine life, ranging from the minute organisms called plankton to the biggest creature the world has ever known, the blue whale.

然而，这里却有着两栖的企鹅和海豹以及丰富的海洋生命—包括从被称为浮游生物的微小生物，直到迄今所知世界上最的动物蓝鲸。

youdao

At first, Jansen thought the creature was a whale, "the biggest thing I'd ever seen."

起初，Jansen以为那是鲸鱼，“那是我所见过的最大的生物。”

youdao