渡渡鸟可能相当聪明-凯发k8官网

渡渡鸟可能相当聪明
文章来源:未知 文章作者:enread 发布时间:2016-02-26 04:19 字体: [ ] 
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new research suggests that the dodo, an extinct bird whose name has entered popular culture as a symbol of stupidity, was actually fairly smart. the work, published today in the zoological journal of the linnean society, finds that the overall size of the dodo's brain in relation to its body size was on 1 with its closest living relatives: pigeons--birds whose ability to be trained implies a moderate level of intelligence. the researchers also discovered that the dodo had an enlarged 2 bulb -- the part of the brain responsible for smelling -- an uncharacteristic trait for birds, which usually concentrate their brainpower into eyesight. the dodo (raphus cucullatus) was a large, flightless bird that lived on the island of mauritius in the indian ocean. they were last seen in 1662.
 
"when the island was discovered in the late 1500s, the dodos living there had no fear of humans and they were 3 onto boats and used as fresh meat for sailors," said eugenia gold, the lead author of the paper, a research associate and recent graduate of the american museum of natural history's richard 4 graduate school, and an 5 in the department of anatomical sciences at 6 7 university. "because of that behavior and invasive species that were introduced to the island, they disappeared in less than 100 years after humans arrived. today, they are almost exclusively known for becoming extinct, and i think that's why we've given them this reputation of being dumb."
 
even though the birds have become an example of oddity, 8, stupidity, and 9, and have been featured in popular stories ranging from alice in wonderland to ice age, most aspects of the dodo's biology are still unknown. this is partly because dodo 10 are extremely rare, having disappeared during the 11 stage of natural history collections.


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1 ok0xr     
n.标准,票面价值,平均数量;adj.票面的,平常的,标准的
参考例句:
  • sales of nylon have been below par in recent years.近年来尼龙织品的销售额一直不及以往。
  • i don't think his ability is on a par with yours.我认为他的能力不能与你的能力相媲美。
2 z5ezw     
adj.嗅觉的
参考例句:
  • he is to develop a sensor to substitute for the olfactory abilities of dogs.克罗克将研制一种传感器用以代替狗的嗅觉功能。
  • based on these findings, keller suspects that each person has an olfactory blind spot.根据这些发现,凯勒推断,每个人都有一个嗅觉盲区。
3 a8990e20e0204b4b90e89c841c5d57bf     
群集,纠结( herd的过去式和过去分词 ); 放牧; (使)向…移动
参考例句:
  • he herded up his goats. 他把山羊赶拢在一起。
  • they herded into the corner. 他们往角落里聚集。
4 c8d722a98f6362710e1b61eaff651091     
镀金工人
参考例句:
5 d6gxy     
n.指导者,教员,教练
参考例句:
  • the college jumped him from instructor to full professor.大学突然把他从讲师提升为正教授。
  • the skiing instructor was a tall,sunburnt man.滑雪教练是一个高高个子晒得黑黑的男子。
6 qu1wx     
adj.石头的,多石头的,冷酷的,无情的
参考例句:
  • the ground is too dry and stony.这块地太干,而且布满了石头。
  • he listened to her story with a stony expression.他带着冷漠的表情听她讲经历。
7 psiyg     
n.小河,溪;v.忍受,容让
参考例句:
  • in our room we could hear the murmur of a distant brook.在我们房间能听到远处小溪汩汩的流水声。
  • the brook trickled through the valley.小溪涓涓流过峡谷。
8 bijxr     
n.过时,陈旧,废弃
参考例句:
  • for some small unproductive mills,the reality is not merger but obsolescence and bankruptcy.对一些效率低下的小厂而言,现实不是合并,而是可能被淘汰和破产。
  • finally,the cost approach can provide a basis for allocating penalties,specifically economic obsolescence.最后,成本法可作为一个分配因陈旧特别是因经济
9 spwzp     
n.熄灭,消亡,消灭,灭绝,绝种
参考例句:
  • the plant is now in danger of extinction.这种植物现在有绝种的危险。
  • the island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。
10 91fc365099a256001af897127174fcce     
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
参考例句:
  • astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • the traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
11 h6uzz     
adj.初生的,发生中的
参考例句:
  • that slim book showed the chinese intelligentsia and the nascent working class.那本小册子讲述了中国的知识界和新兴的工人阶级。
  • despite a nascent democracy movement,there's little traction for direct suffrage.尽管有过一次新生的民主运动,但几乎不会带来直接选举。
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