Is there a brain in the fish: the structure and features. What fish do IQ have?

Today we will talk about whether the brain has a fish. But really, can she think?

The tale of a gold fish excites the imagination of many. To catch such a clever individual or, at worst, a pike that fulfills desires, many men dream. But, unfortunately, there are no talking fish in nature. And even "thinking", in the human sense, can not be found in nature.

Is the brain (brain) in the fish or not?

Of course, he is present. And some lovers of sitting with a fishing pole at the river seriously consider an unsuccessful day as the tricks of a cunning creature. But this is much easier. The brain of the fish is responsible for its behavior at the level of the instincts inherent in nature. And in fact that it does not fall on the hook, completely different circumstances are to blame.

What fish do IQ have? It is generally believed that this indicator depends on the ratio of the brain and body. And although life proves that exceptions occur too often. Even scientists accept these rules for dogma.

The ratio of the size of the body and brain in fish is too diverse. In nature, there are a huge number of species of all sizes and intelligence. For example, the fish of the Nile Elephant is recognized as the largest percentage of the brain and body ratio. But is it possible to call it clever, even if it does not get along with its kindred when there is not enough room.

If we consider the brain of fish and their body, then scientists have a place to turn around. About 30,000 known breeds provide great scope for research in search of the smartest specimen.

So, do fish have a brain? What is its structure?

Any textbook of anatomy will tell you that the brain of fish is worth their one hemisphere. And only in the bottom shark it is represented by two.
It is customary to consider this organ as consisting of three parts: anterior, middle and posterior. Olfactory bulbs located in the forebrain are responsible for the recognition of odors. Because of the importance of this function, the olfactory lobes in fish are greatly increased.

The middle brain, consisting of three kinds of thalamus, is responsible for most of the body's functions. The visual endings are arranged by analogy with the olfactory lobes, but have an extended function. The ability of fish to recognize the time of day is laid down in particular the structure of the optic nerves. Here is the center for controlling the movements of the body.
The cerebellum, bridge and brain elongate make up the brains of the creature.
The relative simplicity of the structure provides all the processes of vital activity of fish.

Why fish brain?

We have already found out if the fish has a brain. Like any living creature, this organ is responsible for the work of organs and body. To the creature to swim, breathe, eat, it needs a brain no less than a man.

Scientists have found out that the fish is able to remember the situation and exit from situations. Therefore, fishermen have to look for new bait and bait for a large catch. The bigger the fish, the harder it is to catch. Although this is not due to the fact that it is smarter, but because it is more experienced. Naturally, in order for the pike to grow to a meter, it will take a long time. She spends it with profit. Of course, all these concepts are conditional. What can be of use for fish? Eats and remembers how her food behaves. Accustomed to places where the food is enough and there are no two-legged predators. Therefore, to catch a bait such a "smart" representative of the underwater world is much more difficult than a roach, which has a short life.
Studies conducted on carp, showed that the fish is able to remember situations. Once caught, the specimen will rarely fall for the second time. She is able to remember the circumstances and assess the danger. Scientists suggest the possibility of information transfer at the gene level. It turns out that the children of the surviving fish can deceive any predator. To prove the validity of such a statement has so far been unsuccessful. But it is impossible to refute it either. The world of underwater inhabitants is too large and diverse.

It should be concluded that it is impossible to consider a fish as an intelligent creature. At least in this sense, as we take into account the presence of mind in humans and animals. Definitely, that there are some beginnings of consciousness, since the fish is capable of self-learning. And if we consider the history of the world, then we can assume that with long-term directional development, this way in a million or two years, the fish will turn into a rational being. At least, scientists consider the place of origin of life on Earth to be the water element.

Does the pain feel?

Do fish experience pain? The question is more important for determining the attitude towards fishing. Sensation of pain is provided by nerve endings. Ichthyologists have long determined that such are found on the body of fish. And this means that she is able to feel pain. There is a problem of the ethical plan. How to assess the suffering of a caught fish? It is better to leave this question at the discretion of each depending on personal moral qualities.

The smartest

We have already found the answer to the question of whether the fish has a brain. And what is the most intelligent fish known to the world? It's the goldfish Comet who can play ball. And she throws a special ball into the basketball basket and the football gate, arranged in her aquarium. Dr. Pomerleo applied his own training methods and argues that every person can bring up a highly intelligent water inhabitant.

Long memory

Freshwater fish croaker is able to remember a meeting with a predator for a period of several months. This conclusion was made by British scientists on the basis of studying the behavior of this species. Fishermen on this account can also lead to more than one example.

Singing fish

To meet in the nature of a singing fish seems impossible. And they say only in fairy tales. But scientists have identified some species that can communicate with sounds. True, this does not seem to be speech, growling or whistling of birds. Fish are exchanged with the help of a special rhythm of bubbles produced. Some are able to give certain signs through fins and gills. Naturally, they "hear" fish not with their ears, but with their bodies.

More precisely, feel the vibration. The researchers used the ability of sound waves to spread rapidly in an aquatic environment. Experiments on ordinary carp showed that you can teach them to whistle to the place of dinner. Enough months of training, so that the fish began to respond with a flock to the sound.

Conclusion

Now you know the answer to the question "Is there a brain in a fish?". Of course. And this means that the fish can still think. We hope that the information provided in the article was helpful to you.