By the time dinosaurs jumped on the feather bandwagon, they were so last eon!

等到恐龙进化出羽毛时候，它们其实已经很落后了！

Geologists measure time in eons, eras, periods, epochs and ages, with eons being the longest.

地质学家用宙、代、纪、世和期来衡量时间，宙是最长。

But in those deep craters it can persist, accumulating over the eons.

但在那些陨石坑深处水就得以被保存，并在亿万年中不断积累。

Over the eons of our evolutionary changes, our diet became very varied.

经过亿万年进化变化，我们饮食变得非常多样化。

Eons later, the comet crashed into a planet in another solar system.

亿万年后，这颗彗跟另外一个太阳系上。

Over the eons, nature has stumbled on many different ways of desquishifying organisms.

亿万年来，大自然偶然发现了许多不同生物脱水方法。

Apparently, Mars suffered a tremendous impact from an object hundreds of kilometers across eons ago.

显然，火在亿万年以前曾被一个宽达上百公里物体击。

Species have been accidentally hitchhiking their way around the planet for eons, well before humans got involved.

早在人类涉足地球之前，物种就已经在地球上偶然搭便车了。

Apparently, star formation in ellipticals came and went eons ago.

显然，椭圆系中恒形成活动在很久以前就开始了。

For millions of years, the Gunnison River has been carving this canyon at work across eons of isolation.

几百万年来，甘尼森河静静地流过孤独黑峡谷。

Over the eons, this has cleaned out a lot of otherwise dangerous objects that could have eventually hit Earth.

长久以来，这清理了许多原本可能会击地球危险物体。

There was certainly life before that, but didn't leave evidence we can find so many eons later.

在那之前肯定有生命存在，但没有留下可供这么多世纪后我们发现证据。

The pictures it returned were breathtaking, and revealed a world that has seen a lot of pummeling over the eons.

它传回来照片令人叹为观止——展示了一个千万年来伤痕累累世界。

And scientists have studied them for eons.

科学家们已经对它们进了亿万年研究。

And those changes have been affected by eons of ideas.

这些变化受到了亿万年思想影响。

The craters in the highlands are from countless impacts over the eons from asteroids and comets.

月陆上陨石坑是由无数小和彗击而形成。

An estimated four billion species emerged on our planet in past eons.

据估计，在过去亿万年里，我们球上出现了四十亿个物种。

Over eons, time has worked its magic here.

历经亿万年，时光在此施展了它魔法。

As eons pass, the nuclei in the frozen black  dwarf slowly combine.

随着亿万年流逝，冰冻黑矮中原子核慢慢结合。

They’re a motley crew, independently evolving similar mouthparts at least four times over the eons.

它们是形形色色群体，在漫长岁月中至少四次独立进化出似口器。