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。
2
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。
3
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.