She is indeed a "link", not only with our own ancestors but with all the rest of the living world - indeed to all the creatures that have ever lived on this Earth.

她其实是一个“链环”，不仅联系着我们自己的祖先，也连接着芸芸众生里其他物种——实际上还联系着所有曾在地球上生存过的物种。

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This widely-held claim is easily refuted when you realize that many people are already convinced that aliens not only visit Earth on a regular basis, but may even be secretly living among us.

但当你意识到很多人已经确信“外星人已经不单单只是定期造访地球，而且还可能隐秘的生活在我们当中”的时候，这种阴谋论观点很容易就被反驳了。

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Merely living on the earth is not praise worthy but living a better life.

仅仅活在世上并不值得称道，值得称道的是生活得美好。

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This is the theory that life is not merely a surface scum which clings to the outside of planet Earth, but that living things, in the form of so-called extremophile bacteria which can tolerate infernal heat, penetrate several kilometres into the planet's interior.

ECONOMIST: Obituary

Nitrogen is by far the most abundant element in the Earth's atmosphere but most of it stays aloof in a form which living things can't use.

BBC: Leaving our mark: Fossils of the future