穴居人可能改变了白尾海雕的爪子形状
文章来源:未知 文章作者:enread 发布时间:2015-03-13 06:13 字体: [ ]  进入论坛
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Krapina Neandertals may have manipulated white-tailed eagle talons1 to make jewelry2 130,000 years ago, before the appearance of modern human in Europe, according to a study published March 11, 2015 in the open-access journal PLOS ONE by David Frayer from University of Kansas and colleagues from Croatia. Researchers describe eight mostly complete white-tailed eagle talons from the Krapina Neandertal site in present-day Croatia, dating to approximately 130,000 years ago. 
 
These white-tailed eagle bones, discovered more than 100 years ago, all derive3 from a single time period at Krapina. Four talons bear multiple edge-smoothed cut marks, and eight show polishing facets4 or abrasion5. Three of the largest talons have small notches6 at roughly the same place along the plantar surface.
 
The authors suggest these features may be part of a jewelry assemblage, like mounting the talons in a necklace or bracelet7. Some have argued that Neandertals lacked symbolic8 ability or copied this behavior from modern humans, but the presence of the talons indicates that the Krapina Neandertals may have acquired eagle talons for some kind of symbolic purpose. They also demonstrate that the Krapina Neandertals may have made jewelry 80,000 years before the appearance of modern humans in Europe.
 
"It's really a stunning9 discovery. It's one of those things that just appeared out of the blue. It's so unexpected and it's so startling because there's just nothing like it until very recent times to find this kind of jewelry," David Frayer said.


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1 talons 322566a2ccb8410b21604b31bc6569ac     
n.(尤指猛禽的)爪( talon的名词复数 );(如爪般的)手指;爪状物;锁簧尖状突出部
参考例句:
  • The fingers were curved like talons, but they closed on empty air. 他的指头弯得像鹰爪一样,可是抓了个空。 来自英汉文学 - 热爱生命
  • The tiger has a pair of talons. 老虎有一对利爪。 来自辞典例句
2 jewelry 0auz1     
n.(jewllery)(总称)珠宝
参考例句:
  • The burglars walked off with all my jewelry.夜盗偷走了我的全部珠宝。
  • Jewelry and lace are mostly feminine belongings.珠宝和花边多数是女性用品。
3 derive hmLzH     
v.取得;导出;引申;来自;源自;出自
参考例句:
  • We derive our sustenance from the land.我们从土地获取食物。
  • We shall derive much benefit from reading good novels.我们将从优秀小说中获得很大好处。
4 facets f954532ea6a2c241dcb9325762a2a145     
n.(宝石或首饰的)小平面( facet的名词复数 );(事物的)面;方面
参考例句:
  • The question had many facets. 这个问题是多方面的。 来自《简明英汉词典》
  • A fully cut brilliant diamond has 68 facets. 经过充分切刻的光彩夺目的钻石有68个小平面。 来自《简明英汉词典》
5 abrasion xypz3     
n.磨(擦)破,表面磨损
参考例句:
  • Diamonds have extreme resistance to abrasion.钻石极抗磨损。
  • This analysis is helpful to the research of derailment and abrasion machenism.该分析有助于脱轨和磨耗机理的探讨。
6 notches be2894ea0263799fb95b9d050d295b3d     
n.(边缘或表面上的)V型痕迹( notch的名词复数 );刻痕;水平;等级
参考例句:
  • The Indians cut notches on a stick to keep count of numbers. 印第安人在棒上刻V形凹痕用来计数。 来自《现代英汉综合大词典》
  • They cut notches in the handle of their pistol for each man they shot. 他们每杀一个人就在枪托上刻下一个V形记号。 来自辞典例句
7 bracelet nWdzD     
n.手镯,臂镯
参考例句:
  • The jeweler charges lots of money to set diamonds in a bracelet.珠宝匠要很多钱才肯把钻石镶在手镯上。
  • She left her gold bracelet as a pledge.她留下她的金手镯作抵押品。
8 symbolic ErgwS     
adj.象征性的,符号的,象征主义的
参考例句:
  • It is symbolic of the fighting spirit of modern womanhood.它象征着现代妇女的战斗精神。
  • The Christian ceremony of baptism is a symbolic act.基督教的洗礼仪式是一种象征性的做法。
9 stunning NhGzDh     
adj.极好的;使人晕倒的
参考例句:
  • His plays are distinguished only by their stunning mediocrity.他的戏剧与众不同之处就是平凡得出奇。
  • The finished effect was absolutely stunning.完工后的效果非常美。
TAG标签: jewelry eagles talons
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