clever rooks repeat ancient fable 聪明的乌鸦印证了古寓言-凯发k8官网

clever rooks repeat ancient fable 聪明的乌鸦印证了古寓言
文章来源:未知 文章作者:meng 发布时间:2009-08-07 02:55 字体: [ ] 
(单词翻译:双击或拖选)

one of aesop's 2 may have been based on fact, scientists report.

科学家发现,一则伊索寓言可能建立在事实的基础上。

rooks are a member of the corvid family of birds
rooks are a member of the corvid family of birds

in the tale, written more than 2,000 years ago, a crow(乌鸦) uses stones to raise the water level in a 3(水罐) so it can reach the liquid to 4(结束,解渴) its thirst.

now a study published in current biology reveals that rooks, a relative of crows, do just the same when presented with a similar situation.

the team says the study shows rooks are 5 tool-users, even though they do not use tools in the wild.

another paper, published in the journal plos one, shows that new caledonian crows - which like rooks, are a member of the corvid group, along with 6(乌鸦), jackdaws(穴鸟), 7(喜鹊) and jays(松鸡) - can use three tools in succession to reach a treat.

floating feast

the crow and the pitcher 1 was used by aesop to 8 that necessity is the mother of invention. but until now, the morality tale was not thought to have a grounding in fact.

to investigate further, a team from the university of cambridge and queen mary, university of london (qmul) presented four captive rooks with a set-up 9 to(类似于) the fable.

the birds were shown a clear tube containing a small amount of water. floating upon it was an out-of-reach worm(虫,蠕虫). and a pile of stones were positioned nearby.

dr nathan emery, co-author of the paper, from qmul, said: "the rooks have to put multiple stones in the tube until the worm floats to the top."

and the four birds did just that. two, called cook and fry, raised the water-level enough to grab the floating feast the very first time that they were presented with the test, while connelly and monroe were successful on their second attempt.

footage of the experiments shows the rooks first assessing the water level by peering at the tube from above and from the side, before picking up and dropping the stones into the water.

the birds were extremely accurate, using the exact number of stones needed to raise the worm to a height where they could reach it.

in another experiment, the rooks were presented with a similar 10. this time they were given a combination of small and large stones.

overall, dr emery told bbc news, the rooks 12(选择) for the larger ones, raising the worm to the top of the tube more quickly.

he said: "they are being as efficient as possible."

and when given a choice between a tube filled with water and another filled with sawdust(锯屑), the birds were more likely to 11 for the liquid-filled tube.

the researchers say their findings suggest that aesop's ancient fable may have been based on fact.

they said: "in 13(民间传说), it is rarely possible to know with certainty which corvid is being referred to.

"hence, aesop's crow might have easily been aesop's rook."



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1 czryn     
n.寓言;童话;神话
参考例句:
  • the fable is given on the next page. 这篇寓言登在下一页上。
  • he had some motive in telling this fable. 他讲这寓言故事是有用意的。
2 c7e1f2951baeedb04670ded67f15ca7b     
n.寓言( fable的名词复数 );神话,传说
参考例句:
  • some of aesop's fables are satires. 《伊索寓言》中有一些是讽刺作品。 来自《现代英汉综合大词典》
  • little mexican boys also breathe the american fables. 墨西哥族的小孩子对美国神话也都耳濡目染。 来自辞典例句
3 s2gz7     
n.(有嘴和柄的)大水罐;(棒球)投手
参考例句:
  • he poured the milk out of the pitcher.他从大罐中倒出牛奶。
  • any pitcher is liable to crack during a tight game.任何投手在紧张的比赛中都可能会失常。
4 ii3yq     
vt.熄灭,扑灭;压制
参考例句:
  • the firemen were unable to quench the fire.消防人员无法扑灭这场大火。
  • having a bottle of soft drink is not enough to quench my thirst.喝一瓶汽水不够解渴。
5 d6vxq     
adj.革新的,新颖的,富有革新精神的
参考例句:
  • discover an innovative way of marketing.发现一个创新的营销方式。
  • he was one of the most creative and innovative engineers of his generation.他是他那代人当中最富创造性与革新精神的工程师之一。
6 afa492e2603cd239f272185511eefeb8     
n.低质煤;渡鸦( raven的名词复数 )
参考例句:
  • wheresoever the carcase is,there will the ravens be gathered together. 哪里有死尸,哪里就有乌鸦麇集。 来自《简明英汉词典》
  • a couple of ravens croaked above our boat. 两只乌鸦在我们小船的上空嘎嘎叫着。 来自辞典例句
7 c4dd28bd67cb2da8dafd330afe2524c5     
喜鹊(magpie的复数形式)
参考例句:
  • they set forth chattering like magpies. 他们叽叽喳喳地出发了。
  • james: besides, we can take some pied magpies home, for bbq. 此外,我们还可以打些喜鹊回家,用来烧烤。
8 iarxw     
v.举例说明,阐明;图解,加插图
参考例句:
  • the company's bank statements illustrate its success.这家公司的银行报表说明了它的成功。
  • this diagram will illustrate what i mean.这个图表可说明我的意思。
9 aldyq     
adj.相似的;类似的
参考例句:
  • the two situations are roughly analogous.两种情況大致相似。
  • the company is in a position closely analogous to that of its main rival.该公司与主要竞争对手的处境极为相似。
10 lzoxm     
n.剧本,脚本;概要
参考例句:
  • but the birth scenario is not completely accurate.然而分娩脚本并非完全准确的。
  • this is a totally different scenario.这是完全不同的剧本。
11 a4szv     
vi.选择,决定做某事
参考例句:
  • they opt for more holiday instead of more pay.他们选择了延长假期而不是增加工资。
  • will individual schools be given the right to opt out of the local school authority?各个学校可能有权选择退出地方教育局吗?
12 9ec34da056d6601471a0808ebc89b126     
v.选择,挑选( opt的过去式和过去分词 )
参考例句:
  • she was co-opted onto the board. 她获增选为董事会成员。
  • after graduating she opted for a career in music. 毕业后她选择了从事音乐工作。
13 g6myz     
n.民间信仰,民间传说,民俗
参考例句:
  • zhuge liang is a synonym for wisdom in folklore.诸葛亮在民间传说中成了智慧的代名词。
  • in chinese folklore the bat is an emblem of good fortune.在中国的民间传说中蝙蝠是好运的象征。
tag标签: fact rook fable
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