Maybe even life forms that build telescopes?

甚至可能是建造望远镜的生命形？

Millions of new life forms flourished.

数百万种新的生命形繁荣着。

Pretty nice. Kind of a rugged, no-frills life form.

很不错，就是那种简朴的生命形。

And as we decide and choose, so are our lives formed.

而当我们决定和选择时，我们的生活便得以形成。

Interested in studying exotic life forms...maybe even identifying new species?

对研究外来的生命形感兴趣？也许还想发现新物种？

The earliest life forms could not move under their own power.

最的生命体不能靠自己的力量移动。

That was a time before complex life forms appeared on Earth.

那是地球上出现复杂生命形的一段时间。

Until about 580 million years ago, life forms were small and microscopic.

直到大约5。8亿，生命形还是微小的。

Did you know that mushrooms are the largest life forms on the planet?

你知道蘑菇是地球上最大的生命体吗?

This led to the debut of the first life forms here on Earth.

于是地球上慢慢开始出现了生命。

It means one in eight non-microbial life forms on Earth could disappear, many within decades.

它表示地球上八分一的非微生物生命形可能会消失，许多只要几十。

The deep ocean is full of strange life forms that we know very little about.

深海充满了我们知甚少的奇怪生命形。

A high oxygen level allowed dinosaurs, the dominant life form, to grow to immense sizes.

较高的氧气含量使得当时占统治地位的生物——恐龙能长成庞然巨物。

So the lack of light in Europa's subsurface ocean doesn't automatically rule out life forming.

因此，并不能仅仅因为木卫二地下海洋缺乏阳光就排除其孕育生命的可能。

We would expect only to see primitive life forms.

我们只能期待看到原始的生命形。

Four and a half billion years ago. The first life forms appeared.

四十五亿。最的生命形出现了。

Still, many scientists agree the first life forms were single-cell organisms that lived in the oceans.

目多数科学家一致认为生命的最初形单细胞生命体都诞生于期海洋中。

Why is living your life as multiple life forms such a great recipe for evolutionary success?

为什么以多种生命形生活是进化成功的一个伟大秘诀？

Some of these little beasts are anaerobic bacteria, life forms that don't need oxygen to survive.

其中一些小野兽是厌氧菌，不需要氧气就能生存的生命形。

Think about how many millions, or billions, of life forms eventually led to the birth of you.

想想有多少百万或数十亿的生命形最终导致了你的诞生。