Why can pigeons send books?

Someone asked if the Flying Pigeon family could use any type of pigeon after training? How do they identify the path?

In fact, this is the use of Pigeon nest to work for humans. In ancient times, the Flying Pigeon family was a safer and easier communication tool. At that time, there was no network, no post office, and there was an emergency, to notify others, let's start with sending a book on behalf of a Flying Pigeon. When something happens, we will put the letter in the wings of the pigeon, the pigeons will rush to "go home", so they will use their own magnetic induction ability to find their home, and believe that they will go home on their behalf. When the family sees the pigeons going home, they will know what is going on there, now, the mail is faster than the pigeons in the past. However, in that case, the Flying Pigeon book is the fastest communication tool.

The Flying Pigeon will not fly back and forth! It is a flight to send a message, and then the original road returns! If this is not a "strong" character, you can train them to send messages to you and your classmates. After a few weeks, if you want them to fly back to you, it is best to let them fly when they raise the next generation. Usually, this pair of pigeons will go to the pigeon houses on both sides in the future. You have to read how to train to send emails. Method: when both sides of the Flying Pigeon family go, they will be separated from each other, one side. Assume that the pigeons are on your side, and the female is on your side. Then you put the pigeon, the pigeon will fly to your classmates; if he put the pigeon, the pigeon is locked in your home, then the pigeon will fly to your home to find the pigeon.
In general, the key is training. Entertainment is more meaningful than reality.

If you are really interested, you can certainly do it. But it takes some time and effort. It is impossible for a Flying Pigeon to deliver a book. For example, if you want to send a mail from Nanjing to Beijing, you have to temporarily bring the pigeons raised in Beijing to Nanjing. When you want to send a mail, you need to put it on it and then put it on it, it will fly directly back to 'home.

The story of the Flying Pigeon is not achieved by subjective desires alone, but also by a certain physical function. In order to improve the homing performance of the Flying Pigeon family, as an important topic in the bionic science, the bioscientists and the Yangge family have made a lot of research on the function of Flying Pigeon family's books to fly to their hometown from a foreign location thousands of miles away, after their own experiments, a variety of navigation theories were proposed, such as "Sun navigation theory", "Geo navigation theory", "radar navigation theory", and various sensory navigation theories, there is also a kind of navigation theory that combines various factors. The consensus is that the pigeon has a substance similar to a "Compass" or a "Compass. Then there must be a map-like substance. So what is the pigeon navigation "map? There are different opinions. A recent study by the kenis apur couple at the State University of New York found that migratory birds use natural light to determine the direction of migration, and the Flying Pigeon book industry is very interested in this. Can you find the "map" of the Flying Pigeon book navigation? Further research is needed.

Sun Compass Navigation
One of the arguments about the navigation of the Flying Pigeon book. Kama, a bird scientist from the Institute of Marine Biology in pulai, Germany, found that the pigeon had a "Sun Compass" to see the sun-based Compass. He believes that the Earth keeps moving around throughout the day, and the pigeons rely on the biological clock in their bodies to correct the time, measure the shift and azimuth changes, so as to determine their own location and flight orientation.

Geo-magnetic compass navigation
One of the arguments about the navigation of the Flying Pigeon book. As early as a century ago, some people suggested that pigeons could directly navigate through the magnetic field of the Earth. However, there is no strong evidence. Later, Robert Green and Charles whirlpool from New York State University performed an experiment. They place coils around the head of a pigeon and pass in tiny harmless currents to control the magnetic field around the head of the pigeon. If the orientation of the above battery is changed, the current passing through the coil will change, the direction of the magnetic field will change accordingly, and the direction of the magnetic field will also change accordingly. In the sun-less sky, the pigeons whose coils are heading south will fly to their home, and the pigeons whose coils are heading north will fly away from their home. Once there is sunshine, they will not be able to do this. As a result, when the pigeons have a sun, they use the sun as the Luo pan, otherwise the Earth's magnetic field as the Luo pan. But which part of the pigeon is sensitive to magnetic properties? It is still a mystery.

What about the magnetic navigation of the ionic
One of the arguments about the navigation of the Flying Pigeon book. It is believed that the navigation of the Flying Pigeon book is the same as that of modern radio communication. The transmitting station transmits the signal to the 10 km outside of the Upper-altitude ground, and the receiving station receives the signal from the upper-right side of the ground. This increases the communication distance from the direct transmission distance by 200 km to more than 2000 km. The same is true for the Navigation Principle of the Flying Pigeon book. The Nest geomagnetic field is weakened by radio signals and cannot even be received. When the Sunday activity is intense, the radio will lose contact. Compared with a series of such phenomena and the conversion of the Flying Pigeon family, the old geomagnetic navigation theory is supplemented and improved. The founder of this theory is the German saegijia Hansen. After many experiments, he used the negative-inductive method to question the existing navigation theory and then added, improve the overturned magnetic navigation theory.

Genetic navigation
One of the arguments about the navigation of the Flying Pigeon book. It is considered that the navigation performance of Flying Pigeon books is the same as that of migratory birds, and it is a physiological instinct. It was determined by genetic factors that founded this theory as a pigeon-pilot of the Soviet Union in the 1930s S. He worked at the Swan farm and found that the swan, which was originally a migratory bird, had changed the habits of South-North migration after several generations of breeding. In the fall, he took the swan to the training ground 100 kilometers away from the training ground. When the wild swan group flew out, they not only did not go with the group nanxiang, but returned to the farm north. Based on this, he concluded that the migration of migratory birds to the north in spring and to the south in autumn is purely a physiological instinct and is the crystallization of generations of genetic variation in a thousand years. The Flying Pigeon book can be completed after several generations of manual training.

IQ navigation
One of the arguments about the navigation of the Flying Pigeon book. It is believed that the ability of Flying Pigeon books to guide sailing is related to the degree of developed IQ. It has been proved by practice that, based on the information of home on weekdays and the surrounding environment conditions, and the significant changes in the field and the environmental conditions, the Flying Pigeon books carried far away from other places are comprehensively analyzed and compared, public private joint venture with the biological clock and biological compass in the body of the home location of the Sun shift (the sun's orientation and height change) and the direction of the geomagnetic field, intensity (including the horizontal intensity and vertical intensity) compared with other countries, this service intelligently determines the direction of the nest, and then gradually approaches the flight to the nest. Most of the excellent competition pigeons that have won multiple victories have developed brains. However, some "Dummies" always fly behind the pigeons, and even cannot find their hometown and lose their foreign land. Obviously, the IQ of the fliggy family has different strengths and weaknesses, but the current research in this area needs to be further explored.

Memory navigation
This is one of the navigation theories of the Flying Pigeon book. It is the research achievement of fans of the Flying Pigeon book in China in recent years on the basis of summing up practical experience. The memory of Flying Pigeon books is recognized by fans of Flying Pigeon books as a practical experience. Therefore, each time a competition is held, the flight distance is always from near to far, and the training should be conducted in the same direction as the terminal. Sai Ge saw the terrain along the way, leaving memories in his mind. With this kind of memory, he decided to go back to his hometown. For example, if Shanghai is the destination and Xining is the starting point of the 1900 km competition, he must go all the way to the north, after training stations such as Jiading, Changshu, Danyang, Xuzhou, and Luoyang, The Flying Pigeon family passed through these five stations, leaving a memory in my mind, I decided that my home was in the south, and finally released in the terminal station in Xining. The Nest retrieval rate would be relatively high. If I did not pass the training of the five stations in the same direction, the first station would be released from Xining, therefore, there must be few pigeons in the nest. If we release five pigeons after training in the north direction and take them to Guangzhou in the south direction, even though the distance is shortened to 12900 kilometers, the result may be that the whole army has not been replaced. This is enough to prove that the treasure to the nest of the Flying Pigeon book is based on its ability to learn and learn the memories and targeting it and fly it to its hometown.

Introduction to celestial radar navigation
One of the arguments about the navigation of the Flying Pigeon book. After flying, we learned that most of the pigeons were "release point deviation" when they left the release location ". The starting "deviation" flight direction gradually deviated from the correct homing direction along an arc until the deviation was about 25 °. Then, the sky circled and flew around to form an oscillating flight mode. In any case, you can always go back to your hometown.

Auditory navigation
One of the arguments about the navigation of the Flying Pigeon book. Clay, a researcher at the University of danel, is engaged in bird navigation instinct. He believes that pigeons detect low-frequency sounds lower than human hearing, and can identify the sound as low as 0.5 weeks (that is, the bass of 12 scales below the central C ). These sounds are numerous on the earth, from mountains, sea waves, thunderstorms, and many other characteristics of nature. Many terrain targets, such as mountains, can have consistent low-frequency intervals with the same adjustment. Therefore, pigeons can use it for navigation, just as airplane drivers use radio signals. In short, the pigeon's perception of low-frequency sound sources, as well as the relationship between the location when the sound is released, can be positioned for themselves, and can decide the route to nest according to different and unique low-frequency sound.

Skin navigation
One of the arguments about the navigation of the Flying Pigeon book. American Institute of Animal Medicine Donald? Dr. Mike found that the pigeon skin cells contain B-carnitine, a chemical that transmits information about external feelings to the brain. He believes that the human body of the human body is particularly developed and sensitive, and it is more than 60% more than all non-homing birds. Therefore, the feeling and response are also colorful, even if you are away from the pigeon house for thousands of miles, you can also display different dry humidity, temperature, and wind directions in your environment, and track the direction of the pigeon house based on the changes you feel. Only by returning to the 50 km radius can we use the layered memory of the eye context to understand the pigeon house. So Dr. Mike asserted that the champion pigeons in the yiyu remote competition will never be infected with skin problems, or cause problems that affect the health of feathers. He reminded pigeon owners that they should not spray pesticides or detergents, or stimulate sesame oil within two or three days before the competition, because these things will damage the ethyl chloride in the skin, fiber cells cannot transmit external "messages" to the pigeon's brain, and the response of many chemicals tends to fail due to slowness. Dr. Mike added that the pigeon bath, water bath, and sunshine bath can not only promote skin, feather health and pest removal, but also enhance the maintenance of feather skin cells, accept the best choice and adjust the response of remote flight to guide the homing target. According to the research report, The Flying Pigeon's book, despite its powerful wings, has finally lost in the Lost Path due to its lack of continuously providing B.

Visual Navigation
One of the arguments about the navigation of the Flying Pigeon book. Many people in the world and China's pigeon community believe that the Flying Pigeon family can fly from thousands of places to their old homes, mainly relying on a pair of sharp eyes to identify the direction. Those who hold this theory can even judge whether the Flying Pigeon's book should fly on a sunny day, on a cloudy day, around the clock, as well as a remote competition pigeon or a super-remote competition pigeon from the color of the iris in the eyes of the Flying Pigeon. According to the experiment, the optic nerve of the pigeon eye is composed of millions of optical fibers, and there are more than 1 million neurons in the retina of the pigeon eye. If we insert the micro-electrode into each nerve fiber, with a variety of optical images to stimulate the pigeon eye, you can find that the pigeon eye retina can detect the basic element movement, intensity and color of the image. In the posterior chamber, the back of the optic nerve has a signed body that can adjust the pressure of the eye with the help of volume changes. The body must be precisely aware of moving objects. The muscles of the pigeon eye are muscle muscles, which facilitate rapid flight to gather images on the retina and change the shape of the crystal and the distance between the crystal and the cornea through the contraction of the mascara. It can also change the curvature of the cornea, known as "dual-Regulation ". This sophisticated and rapid adjustment function can be used to adjust the "remote eye" to "myopia" in an instant to accurately determine the location of the eye and where to fly.

Smell navigation
One of the arguments about the navigation of the Flying Pigeon book. Babi, a researcher at the University of Pisa, Italy, and Hans, France? Wallaft has the deepest research experience. They think that the smell of pigeons is the main reason for returning them to the nest. The Flying Pigeon book is sensitive to the changes in atmospheric pressure data caused by high altitude and seasonal changes. The Flying Pigeon family has been kept in one place for a long time. Its circulatory system and respiratory system are familiar with the geographical and climatic conditions of the region, and naturally form a map of the surrounding environment, once it is found in a strange geographic location, it will feel that the "atmospheric pressure data" is different, feel very uncomfortable, after flying, it will through the airbag, blood vessels, lung and other "Double breathing ", it is very sensitive to positioning the flight in the adaptive direction and returning to the nest.

Leg and foot navigation
One of the arguments about the navigation of the Flying Pigeon book. It is believed that there is a grape-like "small body" that can feel mechanical vibration in the vicinity of the bone compartment between the legs, the tibia and the humerus ". The size of each "small body" is about 0.1 × 0. 4mm, and there are more than "small bodies" on each pigeon leg, which are dominated by a branch of the scionica. These vibrations are very sensitive to small vibrations that have frequencies ranging from dozens of weeks to one to two thousand weeks per second. On the way to flight, the Flying Pigeon book is located based on the signal parameters proposed by these "small bodies.

About flying retrograde positioning and navigation
One of the arguments about the navigation of the Flying Pigeon book. After a long time of flying training, the external factors of the environment are used by the pigeon body to develop the habit of Flying Pigeon books from the flying location to the "home" and "returning to retrograde. The Flying Pigeon book is released. After many places and terrain differences on the way, the signal of the geomagnetic data, the signal of the air pressure data and the color, and the light signal are also different from each other, the pigeon's nervous, circulatory, and respiratory systems have left different "marks". After flying from the destination, it will determine the direction based on these "marks" left on the way, return to the shed.