Regardless of the reason, fewer diatoms meant fewer krill, which in turn meant fewer whales.

不管原因是什么，硅藻数量减少意味着磷虾数量减少，进而意味着鲸鱼数量减少。

And starting around 3 million years ago, the oceans began to experience a serious drop in diatom diversity.

从大约300万年前开始，海洋开始经历硅藻多样性的降。

And we're making sure that this doesn't have any bad effect on the phytoplankton diatoms in the ocean.

我们还要确保这不会对海洋中的浮游植物硅藻造成任何不良影响。

During the Pleistocene, the waters grew colder, and the new and improved productivity at the poles meant diatoms bounced back.

在更新世期间，水域变得更冷，两极新改善的环意味着硅藻得以恢复。

Diatoms take silicon and use it to form a natural porous shell around themselves.

硅藻吸收硅并用它在自身周围形成天然多孔壳。

ROSS COEN: They look at the diatoms.

罗斯·科恩：他们观察硅藻。

ELISA BERGSLIEN: Put that all together, where would you find these diatoms, these minerals, that you wouldn't find coral?

ELISA BERGSLIEN：把所有这些放在，会在哪里找到这些硅藻、这些矿物质，而找不到珊瑚？

These  can be grouped as follows: Phytoplankton – plant-life such as algae  and diatoms that photosynthesise sunlight.

这些可分为以几类：浮游植物——利用阳光进行光合作用的植物生命，例如藻类和硅藻。

Tiny fossilized skeletons of aquatic creatures called diatoms are swept into the wind and carried westward where they rain down on South America.

被称为硅藻的水生生物的微小骨骼化石被风吹走并向西飘落在南美洲。

Mr. Bowler says almost half of the oxygen we breathe comes from very small algae called diatoms. These plants live in the part of the water where the sun reaches.

鲍勒说我们呼吸的近半的氧气来自名为硅藻的微小藻类，这些植物生活在太阳能抵达的水中。

Those plants and animals that do survive usually reproduce very fast and in great numbers. The single-cell plant, the diatom, can multiply itself into a billion new distoms in one month.

那些生存来的植物和动物通常新繁衍更快和更多的数量。单细胞植物，像硅藻，能在个月自己繁衍百万新的硅藻。

They're diatoms: photosynthetic, single-celled algae responsible for producing oxygen and helping seed clouds on a planetary scale and with intricately sculpted, geometric exoskeletons made of -- yeah, glass.

它们是硅藻：光合作用的单细胞藻类，负责产生氧气并在行星范围内帮助种子云， 并具有由——是的， 玻璃制成的复杂雕刻的几何外骨骼。

Some of the critters I found were delightful things like seed shrimp and many more beautiful, geometric diatoms. I then went farther afield to camp out in the Dry Valleys for a couple of weeks.

我发现的些小动物是令人愉快的东西， 例如种子虾和许多更美丽的几何硅藻。然后我去了更远的地方， 在干谷露营了几个星期。