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人们熟悉的课本上所讲的进化过程,如同冰河运动一样缓慢,需要数千年才能见效。而当代进化的快速现象是几年或几十年内可能发生的河水泛滥般的进化变迁……
The evolutionary process taught in the familiar textbooks is just as slow as the glacial movement and it will take thousands of years to be effective. The rapid phenomenon of contemporary evolution is the evolution of rivers that may occur in years or decades.