Creatures less useful or adaptable get short shrift: the extinction rate is running far higher than during normal geological periods.
没什么用处或者适应能力差的生物遭受冷遇：灭绝率远高于正常地质时期的时候。
We can ignore the natural extinction of species under the normal conditions, but we must controll the extinction of species that caused by human activities.
正常条件下的物种自然灭绝我们可以置之不理，但由于人类活动造成的物种灭绝我们就必须加以控制。
Scientists say that another mass extinction is now underway, with extinction rates an order of magnitude higher than normal, both on land and at sea.
科学家们以为另外一产大灭绝正在发生，不管对付陆地仍是海洋而言，此次大灭绝的范围都要超越以往。
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