It's not at all like the killing of individual life forms that can be renewed through normal processes of reproduction.

它和杀害通过平常的繁衍过程就可以再生的单个生命形式完全不同。

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。

Today's programme was all about microalgae like spirulina, a green, edible food algae which some people call pond scum, although scientifically speaking it's an organism, meaning an animal or plant life form.

今天的节目都是关于微藻，比如螺旋藻这种绿色的可食用藻类，有些人称之为绿藻，尽管从学上讲它是一种生物，意思是一种动物或植物的生命形式。

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

而当我们决定和选择时，我们的生活便得以形。

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?

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

对研究外来的生命形式感兴趣？也许还想发现新物种？

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。

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

最早的生命不能靠自己的力量移动。

So we're seeing them as they were further in the past, but they very likely now have stars and planets and evolved possibly, you know, evolved life forms, which is super exciting.

所以我们看到的是它们更遥远的过去，但它们现在很可能有恒星和行星了，并且可能发生了进化，进化了生命形式，这非常令人兴奋。

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

大约三个月后，微生物生命形式的构没有差异。

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

很不错，就是那种简朴的生命形式。

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

直到大约5。8亿年前，生命形式还是微小的。

Magical, because of its glimmering beauty. Commonplace, because many life forms can do it.

神奇，因为它闪烁的丽。常见，因为许多生命形式都能做到。

These scientists propose that Homo sapiens and analogous extraterrestrial life forms may be the probable end result of biological and planetary evolution when a planet has a certain set of attributes that make it habitable, rather than requiring countless lucky breaks.

这些学家提出，当一个星球具备某些宜居属性时，智人和类似的外星生命形式可能是生物和行星进化的最终结果，而不需要无数次的幸运突破。

Coming in with all the confidence in the world while avoiding eye contact at all costs, and then going to the machine neatly tucked in the corner farthest from any other life form.

带着自信走进来，同时不惜一切代价避免眼神接触，然后走到那台恰好塞在角落里、远离其他任何人的机器前。

" Are those the right ingredients for life? " Bierson asked. " We don't know. We need to learn more about how life forms, or how life could form, to find these answers."

“它们是有助于生命存活的正确分？尚不可知。为了找寻真相，我们需要更多地去了解生命是如何形的，或者说怎样才能形生命。”

In fact, the most popular theory regarding the extinction of dinosaurs is related to an asteroid that slammed into Earth, causing widespread destruction and obliterating most life forms in the global aftermath.

事实上，关于恐龙灭绝最流行的理论与一颗小行星撞击地球有关，它造了广泛的破坏，并在全球范围内毁灭了大多数生命形式。

Furthermore, humans have the ability to modify the environment in which they live, thus subjecting all other life forms to their own peculiar ideas and fancies.

而且，人类还有能力改变自己的生存环境，从而让所有其他形态的生命服从人类自己独特的想法和想象。

One clip shows workers in green jumpsuits descending a rock formation while a voice chuckles off-camera: " OK, the intrepid explorers go down to investigate the alien life form."

一段视频显示，穿着绿色连身衣的工人们正从岩层上下来，这时一个声音在镜头外咯咯地笑着：“好吧，勇敢的探险家们下去调查外星人的生命形式。”

Mars is smaller and cooled more quickly after its formation, so it's not crazy at all to wonder if life formed there, even before it did here.

火星比地球小，在形后冷却速度也更快，所以即使怀疑生命在地球上形之前是否在火星上也出现过并不是个疯狂的主意。