Maybe even life forms that build telescopes?

甚至可能是建造望远镜生命形式？

Millions of new life forms flourished.

数百万种新生命形式繁荣着。

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

很不错，就是那种简朴生命形式。

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

而当我们决定和选择时，我们生活便得以形成。

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

对研究外来生命形式感兴趣？也许还想发现新物种？

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

最早生命体不能靠自己力量移动。

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

那是地球上出现复杂生命形式之前一段时间。

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

直到大约5。8亿年前，生命形式还是微小。

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

你知道蘑菇是地球上最大生命体吗?

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.

它表示地球上八分之一非微生物生命形式可能会消失，许多只要几十年。

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

深海充满了我们知之甚少奇怪生命形式。

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

较高氧气含量使得当时占统治地位生物——恐龙能长成庞然巨物。

After about three months, there was no difference in the makeup of microbial life forms.

大约三个月后，微生物生命形式构成没有差异。

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可能。

We would expect only to see primitive life forms.

我们只能期待看到原始生命形式。

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

四十五亿年前。最早生命形式出现了。

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

目前多数家一致认为生命最初形式单细胞生命体都诞生于早期海洋中。

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式生活是进化成功一个伟大秘诀？

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生命形式。