Some people say that fish have memories of only seven seconds is not true

Some people have always said that "the memory of fish is only 7 seconds", but this statement is not correct, as early as 1965, there are scientists experimented, use light to attract fish in the fish tank, and then shock them, after repeating several times, the fish will hide when they see the light, and remember to dodge when they see the light within a month, and some fish are the same as people, can rely on remembering each other's faces.

, there is no research data to support the above statements.

Fish have more than 7 seconds of memory. Scientists have found that fish are more "intelligent" than humans think, and their memory can reach months or even years instead of seconds. They are also capable of learning and using deception to hunt for food.

The memory of a goldfish is not only 7 seconds, but can last up to three months. After training, they can remember the exact time to push the lever, and this memory can last for at least 3 months.

Fish precautionsWhen raising fish, make sure that there is enough food. Pay attention to the appropriate amount of feeding, and the amount that can be eaten within 5-10 minutes of each feeding. The frequency of feeding should be determined according to the appropriate amount of fish raised. Try not to feed at night or on cloudy days.

Water change: When raising fish, it is necessary to ensure that the water is clean and need to be changed regularly. The frequency of water changes is determined according to the habits of the breed raised.

Generally, it should be changed every 7-10 days. Do not let the water temperature and water quality change too much every time you change the water. In addition to ensuring the cleanliness of the water, it is also necessary to ensure the oxygen content of the water.

Many people think that fish only have 7 seconds of memory, but is that really the case? In fact, no, compared to other organisms, the memory of fish is very strong, it can have a memory of a few days or even months or even a few years, not only 7 seconds, in fact, scientists in some countries have also done fish memory experiments, confirming that the memory of fish is not only 7 seconds, they will put the fish into a maze to find, to the exit can be free, two small fish were repeated by the experimenter in the maze to walk the maze, two small fish in the number of experiments gradually formed in the memory, So he memorized the route of the exit, which could take a few minutes at the beginning, to find the exit within a minute, and it turned out that the fish can rely on memory, and he may be like a person who has walked in a place for a long time, and he will remember the general map to distinguish which road is the exit. <>

So our previous perception of fish is wrong, through experiments to prove that fish can rely on their own memory to find the exit, maybe his memory is not as long as we humans, but it can be as long as months or even years, and the size of the brain of fish is not the same, there are many large fish are very smart, but to judge whether a fish is smart, can not look at its size, it is equivalent to us humans, some small people are very smart, but some tall people are stupid, Therefore, we cannot judge the size of a fish when we judge whether it is smart or not. <>

The memory of the fish is definitely more than 7 seconds, they can remember what they want to remember, and they can survive well in the water, maybe when they encounter a big fish attack, they will react very quickly in the **, so the fish is also very smart, as for the fish only seven seconds of memory, this sentence is without any scientific basis, because scientists have repeatedly done experiments to prove that the memory of fish actually has a long time. <>

Not really. Fish have more than seven seconds of memory. According to the Proceedings of the National Academy of Sciences, depending on the type of fish, the memory of fish can be as short as three days and as long as at least three months.

It should be true, because from the point of view of feeding the fish, it is known to be true. Feeding the fish must be fed regularly, and you can't keep throwing fish food into it, otherwise the fish will keep eating until you die of eating.

Not really, fish have more than 7 seconds of memory, scientists in the United States have tested it and come to the conclusion that fish have memories for months.

Probably as early as the 60s of the 20th century, when chemistry began to intervene in neurobiology, someone studied the memory ability of goldfish, about 1965, researchers at the University of Michigan conducted an experiment with goldfish, they put goldfish in a long fish tank, and then one end of the fish tank glows, about 20 seconds later, release the electroshock at the other end of the fish tank, and soon, the goldfish form a memory of electroshock, when they see the light, They will quickly swim to the other end of the tank before the electroshock is released into the water.

To avoid electroconvulsions, the scientists who designed the experiments found that with proper training, these goldfish could forever remember up to a month of techniques to avoid electroconvulsions. In addition to goldfish, another famous aquarium fish, the Paradise Fish, they also have a strong memory, and when this fish encounters a strange goldfish in the pool, it will swim around curiously, looking at the new strange neighbor until it loses interest. If the skyfish and the goldfish meet for the second time in the tank.

They soon found out that they were old acquaintances, lost interest in exploration, experiments found that this memory can last for at least 3 months, and soon, scientists discovered that the model creature in biological research, the zebrafish, is also a fairly intelligent animal, can complete a variety of tasks, around 2002, several researchers at the University of Toledo in Ohio tested the zebrafish's memory ability, and during this training.

They will give the zebrafish a red light as a signal before feeding, after 10 days of suspension of training, the zebrafish still remember the red light signal indicating that it is time to eat, in the laboratory, the zebrafish can also quickly learn how to walk through the maze, and secondly they look for food according to the sound signal, remember the shape of the predator, and avoid electric shocks according to the prompts, so it's just that many people think that the fish only have seven seconds of memory.

The question about whether it is true that the memory of fish is only seven seconds is explained here today.

Do fish really only have seven seconds of memory? Scientist: Not necessarily.

Is the memory of the fish really only seven seconds, it turns out that we have been deceived all along, come in and see.

Do fish really only have seven seconds of memory? The man does not believe in evil, and the ending is a big surprise.

Some people have always said that "the memory of fish is only 7 seconds", but this statement is not correct, as early as 1965, there are scientists experimented, use light to attract fish in the fish tank, and then shock them, after repeating several times, the fish will hide when they see the light, and remember to dodge when they see the light within a month, and some fish are the same as people, can rely on remembering each other's faces.

It's not just seven seconds, because researchers in the United States once did an experiment and determined that the memory of fish can actually reach 20 seconds, and if the fish are trained, these fish can maintain their memory for up to a month.

Not really, ichthyologists at Columbia University have shown that fish can remember for more than a year, so fish have much more than 7 seconds of memory.

The memory of a fish is only seven seconds fake, and Picher, a ichthyologist at the University of British Columbia, Canada, has done experiments to prove that fish memories can be preserved for a long time.

On the Internet, there is a passage that is widely circulated: "A long time ago, someone told me: the memory of a fish is only 7 seconds. Is it true that fish only have a memory of 7 seconds?

Some people have always said that "the memory of fish is only 7 seconds", but this statement is not correct, as early as 1965, there are scientists experimented, use light to attract fish in the fish tank, and then shock them, after repeating several times, the fish will hide when they see the light, and remember to dodge when they see the light within a month, and some fish are the same as people, can rely on remembering each other's faces.

Sometimes someone will hear someone say, "I'm like a fish, I only have 7 seconds of memory, so don't expect me to remember." But in fact, scientists have found that fish can remember more than 7 seconds. Let's take a look at the details of what the situation is.

As early as 1965, researchers at the University of Michigan in the United States conducted an experiment with goldfish. They put the goldfish in a large fish tank, shoot a bright light at one end of the fish tank, and after 20 seconds, release an electric shock at the end that just emitted the bright light. Soon, the goldfish had a memory for electric shocks.

When they saw the light again, they didn't wait to release the shock before quickly swimming to the other end of the tank. The researchers also found that with proper training, the goldfish could memorize the trick of dodging electric shocks for a month.

With such an experiment, would you still say that the memory of a fish is only 7 seconds?

In addition to goldfish, there is also a famous ornamental fish, the paradise fish, which also has a strong memory. If the Paradise Fish encounters a strange goldfish in the pool, they will swim around curiously while looking at their new strange neighbor until they lose interest. If the Paradise Fish and the Goldfish meet for the second time in the tank, they will soon find out that they have met an old acquaintance and lose interest in exploring.

Experiments have found that such memory can be maintained for at least 3 months.

Later, scientists discovered that zebrafish are also very intelligent animals, and they can complete a variety of tasks. In 2002, researchers at the University of Toledo in Ohio, USA, found that zebrafish remembered the red signal before feeding, and that they still remembered the red signal 10 days after the training was terminated. Zebrafish can quickly learn how to walk the maze, learn to find food based on sound signals, remember the shape of predators, and can dodge electric shocks according to cues.

Interestingly, there are similarities between zebrafish and human memory characteristics. When there is too much stress, zebrafish are just as difficult to remember as humans, and distraction will also reduce their learning efficiency. And the zebrafish's memory gradually declines with age.

Therefore, don't underestimate the memory and learning ability of fish, there are still many mysteries waiting for us to develop in nature.

The fish's memory is much more than seven seconds.

In 1965, researchers at the University of Michigan in the United States conducted an experiment with goldfish. They put the goldfish in a very long tank, then shoot a bright light at one end of the tank, and after 20 seconds, release an electric shock at the end of the tank that shoots the bright light. Soon, goldfish develop memories of electric shocks, and when they see light, they quickly swim to the other side of the tank to avoid the electric shocks before they are released into the water.

The scientists who designed the experiment found that with proper training, the goldfish could memorize the tricks of dodging electric shocks for up to a month.

The fish's memory is not only 7 seconds. The memory of fish is far more than 7 seconds, and the memory of different fish is also different, some fish may have a memory of months, some fish can have a memory of years, and even some matching fish can continue to inherit.

Memory is the human brain's recognition, retention, reproduction or re-recognition of experienced and past things, and is the basis for high-level mental activities such as thinking and imagination.

The basic process of memory is composed of three links: recognition, retention, recall and recognition, and these three links are interrelated and mutually restrictive in the process of memory.

The use of methods and skills that can effectively improve memory after practice can make it better serve human work, life and study, and promote human development.

The memory of the fish is only 7 seconds is fake, and the memory of the fish can be passed on to the next generation, or even the next generation.

Specifically, offspring are able to memorize and respond "across generations" to events that happened to their parents that they did not experience themselves. DNA methylation events in zebrafish can be passed on to the next generation, or even later generations. In other words, in fish (at least zebrafish), it appears that memories can be passed on to offspring by passing DNA methylation, which may help zebrafish better adapt to changes in their environment.

So, don't say that the memory of the fish is only 7 seconds in the future.

In terms of memory, fish are on par with, if not better, the "higher" vertebrates, and use tools to get food. Many fish search for prey by emitting electrical pulses, and some herbivorous fish carefully take care of the "vegetable garden". They draw maps to find shortcuts from one place to another.

The IQ of the fish

The IQ of a fish is equivalent to that of a human being 2 years old, and scientific experiments have shown that fish can even open the cap of a bottle and eat the delicious small crab inside. The average lifespan of a fish is about 3 years old, and if the living conditions are very good, they can live up to about 4 years old. Fish have well-developed eyes, which is the only similarity between it and humans.

Quite different from humans in other respects, fish have three hearts, two memory systems, one is the brain memory system, and the other memory system is directly connected to the suction cup.

In order to avoid the predators, in addition to the well-known mimicry camouflage and "wrist" self-preservation techniques, the octopus will bend and fold six of its eight "claws" upwards to make a coconut shell when facing danger or starving divers. The remaining two "claws" will stand on the ground of the seabed, secretly move backwards, like moving coconuts, and flee in backwards and strides, in a very funny posture.