SSS 2010-02-01
时间：2019-01-08 作者：英语课 分类：Scientific American(二)月
Bees’ bread and butter is flowers—there’s no reason they should be able to recognize human faces. But they can.
Back in 2005, Arian Dyer at Monash University showed that bees could identify people who they associated who with sugary snacks. But could they recognize humans, or did they just see them as weird 1 flowers?
Martin Giurfa at France’s Université de Toulouse contacted Dyer to work on that question. First, they drew simple images of facial features—dots for eyes, slashes 2 for nose and mouth. The bees were trained to distinguish between an image with narrower features and one with wider ones.
Then the scientists asked could the insects distinguish face-like features from non-faces? The bees won sugary rewards when they picked out faces as opposed to pictures that just had random 3 dots and dashes.
Finally, the critters faced their ultimate task: to pick out real faces from those that had the features scrambled 4. And: score. Bees could indeed differentiate 5 faces from non-faces. The study was published in the Journal of Experimental Biology. Scientists hope that the simple bee brain could be a model for automated 6 facial recognition, which could help in FBI stings.
—Cynthia Graber
- From his weird behaviour,he seems a bit of an oddity.从他不寻常的行为看来，他好像有点怪。
- His weird clothes really gas me.他的怪衣裳简直笑死人。
- They report substantial slashes in this year's defense outlays. 他们报道今年度国防经费的大量削减。 来自辞典例句
- Inmates suffered injuries ranging from stab wounds and slashes to head trauma. 囚犯们有的被刺伤，有的被砍伤，而有的头部首创，伤势不一而足。 来自互联网
- The list is arranged in a random order.名单排列不分先后。
- On random inspection the meat was found to be bad.经抽查，发现肉变质了。
- Each scrambled for the football at the football ground. 足球场上你争我夺。 来自《现代汉英综合大词典》
- He scrambled awkwardly to his feet. 他笨拙地爬起身来。 来自《简明英汉词典》
- You can differentiate between the houses by the shape of their chimneys.你可以凭借烟囱形状的不同来区分这两幢房子。
- He never learned to differentiate between good and evil.他从未学会分辨善恶。