野猪与疣猪体内可能有生物罗盘
文章来源:未知 文章作者:enread 发布时间:2016-06-23 08:14 字体: [ ]  进入论坛
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New research suggests for the first time that wild boars and wart1 hogs2 have an internal magnetic compass that helps them orient themselves as they forage3 for food and inhabit new areas. For the study, investigators4 observed 1614 wild boars at 31 different localities in the Czech Republic and 1347 warthogs at 33 different localities in six African countries. The animals had a highly significant axial preference to align5 themselves approximately along the magnetic north-south axis6, with a slight shift towards east. The time of the day, season, and weather conditions had no significant influence on the average directional preferences of wild boars or warthogs.
 
"The fascinating findings add on to a well growing body of evidence for a magnetic sense in mammals. The interesting questions that arise now are how they are able to sense the magnetic field and whether they really use it for navigation" said Dr. Pascal Malkemper, senior author of the Mammal Review study.


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1 wart fMkzk     
n.疣,肉赘;瑕疵
参考例句:
  • What does the medicaments with remedial acuteness wet best wart have?治疗尖锐湿疣最好的药物有什么?
  • Flat wart is generally superficial,or sometimes a slight itching.扁平疣一般是不痛不痒的,或偶有轻微痒感。
2 hogs 8a3a45e519faa1400d338afba4494209     
n.(尤指喂肥供食用的)猪( hog的名词复数 );(供食用的)阉公猪;彻底地做某事;自私的或贪婪的人
参考例句:
  • 'sounds like -- like hogs grunting. “像——像是猪发出的声音。 来自英汉文学 - 汤姆历险
  • I hate the way he hogs down his food. 我讨厌他那副狼吞虎咽的吃相。 来自辞典例句
3 forage QgyzP     
n.(牛马的)饲料,粮草;v.搜寻,翻寻
参考例句:
  • They were forced to forage for clothing and fuel.他们不得不去寻找衣服和燃料。
  • Now the nutritive value of the forage is reduced.此时牧草的营养价值也下降了。
4 investigators e970f9140785518a87fc81641b7c89f7     
n.调查者,审查者( investigator的名词复数 )
参考例句:
  • This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
  • The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》
5 align fKeyZ     
vt.使成一线,结盟,调节;vi.成一线,结盟
参考例句:
  • Align the ruler and the middle of the paper.使尺子与纸张的中部成一条直线。
  • There are signs that the prime minister is aligning himself with the liberals.有迹象表明首相正在与自由党人结盟。
6 axis sdXyz     
n.轴,轴线,中心线;坐标轴,基准线
参考例句:
  • The earth's axis is the line between the North and South Poles.地轴是南北极之间的线。
  • The axis of a circle is its diameter.圆的轴线是其直径。
TAG标签: magnetic compass boars
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