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研究人员说决定人类脑容量的两个基因在过去的六万年里经历了实质性的演化,不过他们认为人脑目前仍然处于急剧的进化过程中。此项发现进一步强调了这样的观点,即人类的进化过程仍然在继续着。先前人类基因中抗病和赋予成年人牛奶消化力基因的出现就是关于近期人类基因改变的例子。
The researchers said that the two genes that determine human brain capacity have undergone substantial evolution over the past 60,000 years, but they believe that the human brain is still in a dramatic evolutionary process. This finding further emphasizes the view that the evolutionary process of human beings continues. The appearance of genes that have previously been resistant to disease in humans and confer milk digestibility to adults is an example of recent human genetic changes.