Today we are witnessing a sixth mass extinction, but unlike the others, the current loss of bio-diversity can be traced to human activity.

今天，我们正在见证第六次物种大灭绝，但与其它几次不同的是，目前生物多样性的丧失可以追溯到人类活动。

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Even so, "it's very important to devote resources and legislation toward species conservation if we don't want to be the species whose activity caused a mass extinction."

尽管如此，“如果我们不希望成为物种灭绝的罪魁祸首，还需要在财政和立法上对物种保护进行大力支持。”

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Women also had a greater mass of brown adipose tissue and higher 18F-FDG uptake activity.

女性比男性的棕色脂肪组织量高并且18F –FDG吸收活性也较高。

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The financial upsets of the past two decades, and especially the East Asian crisis of the late 1990s, have yielded a mass of new information and spurred a great deal of activity under each of these headings.

ECONOMIST: Hot and cold running money | The

For about a century now, tree planting has been the mass-participation activity.

BBC: NEWS | Science/Nature | Rolling back Iceland's big desert

But we are the only species to have defined a geological period by our activity something usually performed by major glaciations, mass extinction and the colossal impact of objects from outer space, like the one that defines the upper boundary of the Cretaceous.

FORBES: On The Anthropocene Age