蜜蜂具有超级快速的视觉系统
文章来源:未知 文章作者:meng 发布时间:2010-03-18 01:48 字体: [ ]  进入论坛
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Bees see the world almost five times faster than humans, according to new research from scientists at Queen Mary, University of London. This gives bumblebees(大黄蜂) the fastest colour vision of all animals, allowing them to easily navigate1 shady(阴暗的) bushes to find food, write Dr Peter Skorupski and Prof Lars Chittka in the Journal of Neuroscience.

The ability to see at high speed is common in fast-flying insects; allowing them to escape predators2(掠夺者,捕食者) and catch their mates mid-air. However, until now it wasn't known whether the bees' full colour vision was able to keep up with their high speed flight. This research sheds new light on the matter; suggesting that although slower, it is also about twice as fast as human vision.

Dr Skorupski, who carried out the work at Queen Mary's Research Centre for Psychology3 in the School of Biological and Chemical Sciences says; "We can't easily follow a fast flying insect by eye, but they can follow each other, thanks to their very fast vision. How fast you can see depends on how quickly the light-detecting cells in your eye can capture snapshots(快照) of the world and send them to you brain. Most flying insects can see much quicker than humans, for example so they can avoid getting swatted(重拍) ! "

Bumblebees use their advanced colour vision in many ways. Dr Skorupski explains: "Bees were the first animals that scientists proved to have colour vision, and they have since been shown to put it to good use; navigating4 dappled(斑纹的,斑点的) light and shady areas, recognising shapes like their hive entrance, and particularly for finding nectar-bearing coloured flowers."

The experiments show that the bees burn more energy to see in colour than they would to see in monochrome(单色) (black and white), raising questions about how they make the most of it. "Bees' energy can't be used frivolously5(轻浮地,轻率地) , as they need so much of it just to stay alive. It seems they only see colours at half the speed they see white light, which give them enough detail to find their favourite flowers and navigate back home," suggests Dr Skorupski.



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1 navigate 4Gyxu     
v.航行,飞行;导航,领航
参考例句:
  • He was the first man to navigate the Atlantic by air.他是第一个飞越大西洋的人。
  • Such boats can navigate on the Nile.这种船可以在尼罗河上航行。
2 predators 48b965855934a5395e409c1112d94f63     
n.食肉动物( predator的名词复数 );奴役他人者(尤指在财务或性关系方面)
参考例句:
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
3 psychology U0Wze     
n.心理,心理学,心理状态
参考例句:
  • She has a background in child psychology.她受过儿童心理学的教育。
  • He studied philosophy and psychology at Cambridge.他在剑桥大学学习哲学和心理学。
4 navigating 7b03ffaa93948a9ae00f8802b1000da5     
v.给(船舶、飞机等)引航,导航( navigate的现在分词 );(从海上、空中等)横越;横渡;飞跃
参考例句:
  • These can also be very useful when navigating time-based documents, such as video and audio. 它对于和时间有关的文档非常有用,比如视频和音频文档。 来自About Face 3交互设计精髓
  • Vehicles slowed to a crawl on city roads, navigating slushy snow. 汽车在市区路上行驶缓慢,穿越泥泞的雪地。 来自互联网
5 frivolously e41737201dc317af76e74e4e5de2880d     
adv.轻浮地,愚昧地
参考例句:
  • She behaves frivolously, she is not at all sedate. 她举止飘浮,很不稳重。 来自互联网
  • She spends her time frivolously enjoying the easy life. 她玩世不恭地消磨时间,享受著轻松的生活。 来自互联网
TAG标签: research colour vision bees
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