Experiment: find out whether the fish themselves in the mirror?
Source:This is very strange to realize, but the ability to recognize her own face in the mirror — this is a very rare skill in the animal world. People are able to learn yourself approximately 15 months of age — it is also capable of some types of monkeys, elephants and even birds. Researchers from universities in Germany, Romania and Japan decided to find out whether there is such a skill in fish and, moreover, do they have any sense of identity. The result of the experiment surprised them so much that they do not fully believe in it.
The Experiment was conducted on fish of the genus Wrasses, which are common in the Eastern part of the Atlantic ocean. The researchers took a few fish and caused them a note in the head, which can be seen only in the mirror. The idea was to see if fish recognize themselves and try to erase the mark.
When one of the fish saw my reflection and started to RUB against a hard surface to remove the track, the researchers were surprised. This was the first hint that fish know when they are faced by relatives, and when the mirror. To verify the purity of the experiment, the researchers struck them on the forehead transparent label, fish did nothing, and it means that the first time they focused on reflection, not felt label other senses. The researchers also tried to trick the fish, drawing a mark on the aquarium for fish did not react.
The Fact that fish passed the mirror test, so surprised the researchers that they doubt the results. According to one of the authors Alex Jordan, though fish and responded to the reflection, this does not mean that they are self-aware. According to him, most fish recognize in the reflection of his own body, but a full understanding of himself nothing to do with it.
It is Noteworthy that the marine life is really very smart. For example, about the cognitive abilities of dolphins can be found in our .
Want to read more news of science and technology? Subscribe to our where you can find materials that are not on the site!
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
Scientists have identified "neurological patterns" of consciousness
a New study using functional magnetic resonance imaging (fMRI) shows that the picture of the brain of a person in a vegetative state or minimal consciousness state different from the pattern of activity of the human brain, in cons...
The last four years have been the hottest in modern history
that global warming can cause , has long been known. Unfortunately, many people do not realize the seriousness of the problem, as climate changes occur so slowly that without a comparison of the temperature indicators of various y...
The laser was able to juggle drops
Suspended by means of a laser beam micrometer glycerin drops begin to move in orbits, which in form resemble the trajectory of the balls of the juggler. By this unexpected discovery physics came from Germany and Sweden, which are ...
Mice were able to restore amputated fingers by using two protein
Perhaps in the future people will be able to restore lost limbs — in any case, suggesting medical experiments. Scientists already know that under certain conditions, the body can grow bone, but they still failed to fix the signs o...
By the end of the 21st century most of the oceans will change color
climate Change causes significant changes in the state of phytoplankton in the World ocean, and a new study has shown that in coming decades these changes will greatly affect the color of the ocean, enhancing its blue and green re...
In Africa, found traces of ancient glaciers
Can you believe that once upon a time, in the lands of Africa were passing huge glaciers? If you consider that throughout the long history of the continents changed their location, this may be. Geologists already have strong evide...
Proven: bacteria sacrifice themselves to protect the colony from antibiotics
Despite its tiny size, bacteria are incredibly tricky. To protect themselves and their colony from the effects of antibiotics, can they evade danger by being in hibernation, or to develop a genetic resistance to the drugs. Researc...
Proved that the female brain remains young longer than men
that between male and female brains, there are structural differences, scientists have known for a long time. So, in 2017, researchers from the Amen Clinics have studied 20 000 photos of the brain and found that the female brain i...
Three projects of geoengineering that can fix or break the Earth
From the growing forest area of the continent to call for rain, scientists began to propose, test and even implement large-scale geo-engineering projects to radically transform the planet. These projects are designed to solve prob...
Found a part of the brain that makes people laugh and feel euphoric
a Surgical operation on the brain is an extremely complex process, during which patients sometimes it's important to keep in mind. It is necessary that the surgeon at any time to speak with the person and make sure that its lingui...
Our galaxy was not the flat disc, as previously thought
the results of the study by an international team of astronomers, Astronomy journal Nature, suggests that our home galaxy the milky Way is not like a flat "pancake", as was previously assumed. Closer to the edges of the galaxy bec...
The Alps and the beaches: elegant interior design will help people in deep space
When it comes to the creation of an internal part of the spacecraft, engineers often prefer functionality, not aesthetics, focusing on materials and equipment that are safe and effective to accomplish the intended purpose of the v...
Experiment: how loneliness affects the body and the mind of man?
what do you think will survive if you stay in an isolated room with no light for a whole month? Professional poker player rich Alati put $ 100 000 on that all it to him — he readily agreed to stay 30 days in a dark room where ther...
Sun probe "Parker" was released on the second orbit around the Sun
Sunny Explorer "Parker", created by NASA, became the champion at the very beginning of his mission, when he took the title of fastest spacecraft in history, subtracting it from the hugely successful probe "New horizons". And a few...
Scientists have learned how to determine the sex of cremated people
Preserved until the present time the bones of ancient people can tell a lot about their life and customs. Archaeologists can easily identify their gender by measuring the size of the bones in men and women, they are very different...
The Curiosity Rover made an important discovery with a simple tool
the Camera "Curiosity" arrived on Mars in 2012, and during this time revealed many facts about the red planet. Basically he used a complex device like a drill and an onboard laboratory, but for a recent calculation of the density ...
Google created a database of thousands of records synthesized speech
it Seems that in the near future, human interaction will be kept to a minimum. At least all this is: here at Google, for example, was able to collect a database of thousands of records the synthesized English speech, according to ...
Scientists: complex life forms were formed due to the tiny predators
Speaking of Ice age, we immediately think about the massive cold snap that occurred about 110 thousand years ago. However, scientists have a theory that long before the well-known period of our planet is faced with so strong a dec...
Will the "trains on hydrogen" to deliver us from diesel fuel?
When the UK government cancelled its plans for electrification of rail lines running through Wales, the Midlands and the North of England, and reduced the electrification of the railway network of Great Western, this led to premat...
Under the glacier, Thwaites found a 300-meter cavity: than it is dangerous?
For many years, scientists suspected that the huge Thwaites glacier practically did not attached to the bedrock beneath. It was also of the opinion that it melts — if this is true, the global sea level can rise to dangerous levels...
Comments (0)
This article has no comment, be the first!