We are now in the early stage of the sixth great extinction.

我们现在已经进入地球第六个大绝种时期；

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This is further evidence that we are well on the way to the next great extinction event.

这也进一步证明我们正在走向下一次大灭绝的厄运。

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This potential sixth great extinction is unique in that it is caused largely by the activities of a single species.

这潜在的第六次物种大灭绝独特之处在于，它主要是由单一一个物种的活动造成的。

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The tiger's arrogance has made it a favorite quarry of big-game hunters, who by the middle of this century had pushed the great cat to near-extinction.

CNN: ASIANOW - TIME Asia | India: Much Ado About a Map

"The fate of the European bison provides an example of the way in which a species may be brought to the brink of extinction in a very short time, and then saved only through great efforts, " says Dr. Zbigniew Krasinski of Poland's Bialowieza National Park.

CNN: All creatures great, small and disappearing