新闻 > 国际
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China

尼安德特人的孩子生长模式与现代人很相似

2017-09-23 13:31:54   新华网

新华社华盛顿9月22日电(记者林小春)美国《科学》杂志22日发表的一项研究报告说,根据对一具保存较好的尼安德特人儿童骨架的分析,欧洲古人类尼安德特人在孩童时期成长缓慢,其模式跟现代人非常相似。

这具尼安德特人儿童骨架发现于西班牙北部一个有4.9万年历史的洞穴,除了包括乳牙在内的30颗牙齿外,还有部分头颅和部分骨骼。与这具儿童骨架一起发现的还有7名成年人和另5名孩子的遗骸。

基于这些牙齿、骨骼和头颅,研究人员推断,这个孩子是一个男孩,7.7岁时死亡,当时体重26千克,身高1.1米。

论文作者、西班牙国家自然科学博物馆古人类学小组成员路易斯·里奥在电话记者会上说:“我们在这个尼安德特人身上所看到的是,他们的总体生长模式与现代人类非常相似。”

负责研究的该小组主席安东尼奥·罗萨斯在记者会上说,这种相似可能意味着“我们继承了他们(尼安德特人)的生长模式……我们所认为的现代人——智人——独一无二的特征也许并不是那么独特。”

尼安德特人是远古分布在欧洲大陆的最主要古人类,是与现代人在进化学上最近的亲族。约3万年前,尼安德特人逐渐灭绝,进而被现代人的祖先取代。

令人感兴趣的是,尼安德特人的大脑比现代人大,尽管这不代表他们比现代人更聪明。一些人认为这是因为尼安德特人大脑生长速度较快;而另外一些人提出,这反映了他们脑组织生长的时间较长。

最新研究显示,这个尼安德特人男孩死亡时大脑才发育了87.5%,而同龄现代人的大脑已基本发育完成。此外,他的某些椎骨尚未融合。而在现代人中,这些椎骨往往在4至6岁时就已融合完成。不过,研究人员无法确定他的死因。

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170923/31507006.html
Server: cms-8-252
Date: 2024/11/15 18:24:01

Powered by China
China