Home
Reading
Listening
Translation
Writing
Vocabulary
Forum
Home > Learning English > Extensive Reading
Are we becoming more stupid?

A 3D image replica of a 28,000-year-old skull found in France shows it was 20 per cent larger than ours.
A 3D image replica of a 28,000-year-old skull found in France shows it was 20 per cent larger than ours.


阅读难度:

It's not something we'd like to admit, but it seems the human race may actually be becoming increasingly dumb.

Man's brain has been gradually shrinking over the last 20,000 years, according to a new report.

This decrease in size follows two million years during which the human cranium steadily grew in size, and it's happened all over the world, to both sexes and every race. ...

(点击《每日邮报》查看原文)

研究证明:人类可能正在变得越来越笨

       尽管我们不愿意承认,但研究证明,人类可能正在变得越来越笨。

       一项最新研究显示,人类的大脑在过去的2万年间正在不断萎缩。并且,这种萎缩在所有人种、不同性别中都有体现。

       研究者凯瑟琳•麦考里夫在《发现》杂志上撰文称:在过去的2万年里,男性的平均脑容量从1500立方厘米缩小至1350立方厘米。减少的大脑体积足有一个网球那么大。并且,女性的脑容量也在以同样的比例缩小。

       不过,对于这种说法,也有科学家表示了不同意见。来自美国威斯康星州的人类学家约翰•霍克斯教授就认为,脑容量的缩小并不意味着人类智慧的下降。

       也有一些古生物学者支持霍克斯教授的观点。他们认为,人类的脑容量虽然在缩小,但大脑的效率正在不断提高。

       另外,对于人类脑容量的萎缩,有学者认为,这是人类繁衍发展的正常现象。随着人类生存环境的不断改善,食物获取和咀嚼的费力程度越来越低,大脑也就减缓了生长。

       不过,也有科学家认为,人类的大脑可能重新发育,重新增长。

       对此,科学家们还在进行更深入地研究。

Print E-mail Bookmark and Share 分享|

Go to Forum >>0 Comments

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Racist, abusive and off-topic comments may be removed by the moderator.
热点词库
- V-sign that told me this baby would be fine
- Colombia undertaker launches ghostly census
- Elephants enjoy Germany's winter weather
- CCTV 'used to monitor schoolchildren in toilets'
- Britons' predictions for 2025
Chinglish Corner