精品处破在线播放,亚洲高清无码黄免费,欧美视频一区二区三区四区,欧美v亚洲v日韩v最新在线

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.


閱讀難度:

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. ...

(點擊《每日郵報》查看原文)

研究證明:人類可能正在變得越來越笨

???????盡管我們不愿意承認,但研究證明,人類可能正在變得越來越笨。

???????一項最新研究顯示,人類的大腦在過去的2萬年間正在不斷萎縮。并且,這種萎縮在所有人種、不同性別中都有體現(xiàn)。

???????研究者凱瑟琳?麥考里夫在《發(fā)現(xiàn)》雜志上撰文稱:在過去的2萬年里,男性的平均腦容量從1500立方厘米縮小至1350立方厘米。減少的大腦體積足有一個網(wǎng)球那么大。并且,女性的腦容量也在以同樣的比例縮小。

???????不過,對于這種說法,也有科學家表示了不同意見。來自美國威斯康星州的人類學家約翰?霍克斯教授就認為,腦容量的縮小并不意味著人類智慧的下降。

???????也有一些古生物學者支持霍克斯教授的觀點。他們認為,人類的腦容量雖然在縮小,但大腦的效率正在不斷提高。

???????另外,對于人類腦容量的萎縮,有學者認為,這是人類繁衍發(fā)展的正常現(xiàn)象。隨著人類生存環(huán)境的不斷改善,食物獲取和咀嚼的費力程度越來越低,大腦也就減緩了生長。

???????不過,也有科學家認為,人類的大腦可能重新發(fā)育,重新增長。

???????對此,科學家們還在進行更深入地研究。

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.
熱點詞庫
- 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