Odd-fish: the second identification face, then spray "saliva"-Archer Fish-IT information

Researchers said on June 9, there is a tropical fish with human and other "smart" biological brain region used to distinguish human faces, but can also tell the difference between different face.

Agence France-Presse reported on June 7, this amazing ability is 8 of Archer fish in the experiment. Archer fish are tropical species, which is famous for its prey in the water spraying pressurized water. This time, these fish shooter no longer aimed at insects, but guided shooting above the Aquarium scientists face picture on the computer screen.

Research paper writers, one of the United Kingdom, Oxford University Kaite·niubote said: "the speed and accuracy of the Archer Fish made us surprised. ”

Researchers first familiarize Archer fish two human faces, if they started out in one spray will get a food reward. Then, the researchers tested whether these fish from 44 new face to identify themselves with the man and gave him water.

Archer fish the correct rate is over 80%. Newport said: "even if we increase the difficulty, such as the use of black and white pictures and standardized face, Archer fish can still find the face recognition in training. I think the public would be surprised on the level of intelligence and behavior of fish. ”

She added: "the original assumption was that identifying faces is a difficult task, only primates with a large complex brain to complete. ”

Successful identification of human face of Archer fish do not have the neo-cortex of the brain. Part of the neo-cortex is the final evolution of the human brain, and is responsible for the control of sensory perception and language skills .

Birds also can recognize human faces. Scientists have found that birds like neo-cortex of the brain structures.

Newport said: "the simple thought that fish brains, intelligence may be limited. But more and more research shows that fish can do far more than we originally envisaged. ”

Understanding fish intelligence may be useful in understanding how the human brain functions, such as facial recognition is congenital or acquired ability.

Researchers wrote in the paper, experimental results show "'s ability to identify individuals based on the facial features are not unique to humans, maybe the human face itself is not that special."

Research papers published in the United Kingdom the journal Science reports.

奇鱼：秒认人脸，然后喷“口水” - 射水鱼 - IT资讯

科研人员6月9日表示，有一种热带鱼虽然不具备人类及其他“智慧”生物用来辨别人类面孔的大脑区域，但也能分辨出不同人脸的区别。

法新社6月7日报道，这种令人惊讶的能力是8条射水鱼在实验中表现出来的。射水鱼属于热带物种，它以能朝水面上的猎物喷射加压水柱而闻名。这次，这些鱼类射手不再瞄准昆虫，而是在科学家引导下射击水族箱上方计算机显示屏上的人脸图片。

研究论文撰稿人之一、英国牛津大学的凯特·纽波特说：“射水鱼的学习速度和准确程度令我们惊喜万分。”

科研人员首先让射水鱼熟悉两张人类面孔，如果它们朝其中之一喷水就会得到食物奖励。然后，科研人员测试这些鱼能否从44张新面孔中辨认出自己熟悉的那个人并朝他喷水。

射水鱼的正确率高达80%以上。纽波特说：“即使我们增加难度，比如使用黑白图片和标准化脸型，射水鱼还是能找出在训练中认识的那张脸。我觉得公众会对鱼类的聪明程度和行为方式大吃一惊。”

她还说：“原来的假设是，辨识面孔是高难度任务，只有具有体积较大的复杂大脑的灵长目动物才能完成。”

但成功辨识人脸的射水鱼并不具备大脑新皮层。新皮层是人类大脑最后进化出的部分，负责控制感官知觉和语言能力。

鸟类也能分辨人类面孔。科学家最近发现鸟类大脑存在类似新皮层的结构。

纽波特说：“人们原以为鱼类的大脑简单，智力可能受到限制。但越来越多的科学研究显示，鱼类能做到的事远超我们原来的设想。”

理解鱼类智力或许有助于理解人类大脑的功能，比如面部识别属于先天还是后天能力。

科研人员在论文中写道，实验结果证明“根据面部特征来分辨个体的能力并非人类独有，也许人类面孔本身并没有那么特别”。

研究论文发表在英国《科学报告》杂志上。