Why do all animals have heads?

Life exists because it has a brain, and all living things have brains, and where brains exist is brains, so all living things have brains.

In order to adapt to the living environment, because only with a head can you have eyes, nose and mouth to live.

I think the main reason is that if these animals want to survive, they have to breathe, so they have to find a breathing opening, and the mouth on their head is their breathing opening.

My understanding of this issue is this:

The head, commonly known as the head, is the most vital and highest-level organ of the vertebrate central nervous system, and the brain grows in it. The brain is the organ of life and thinking, and it is the carrier of psychology, thinking and consciousness. Generally speaking, the brain of animals can be divided into these parts, one is the telencephalon, which refers to the two hemispheres of the brain; the second is the diencephalic, midbrain, and hindbrain, which are composed of cerebellum and pontine or pons; The third is to extend the brain or medulla oblongata.

The midbrain, pons, and medulla oblongata form the brainstem, which is intertwined with nerve cell clusters and nerve fibers.

1. In my cognition, all animals have brains on their heads, and there seems to be no exception. Animals do not have brains that grow on their heads, but because they have brains in this place, they are called heads.

Second, I think it is not that the brain must grow in the head, but that the brain grows in **, which part will inevitably become what we call the head. The reason why the head is called the head is because of this.

3. A more typical "head", in addition to the brain, generally integrates sensory organs such as eyes, nose, ears, and mouth. That's because the "head" of the animal's body is the "headquarters" responsible for receiving information, transmitting instructions, and ingesting nutrients. The closer these sensory organs are to the brain, the better, and the closer they are, the higher the sensitivity and accuracy of receiving information; The closer it is, the more timely and accessible it will be.

Fourth, if you are reluctant to find the reason why the brain grows on the head, some experts explain that it is because in the evolution of animals with symmetrical left and right, the nervous system will gradually gather to the front end of the animal's body. The front end and the back end, that is, the head and tail in the popular sense. This phenomenon can enhance the animal's ability to move in a directional way.

And improve the ability and sophistication of the search for resources, better ** predators. However, this concept is based on the premise that "the brain grows in the head".

The above is the words of the Qiushui family, welcome to shoot bricks where there are fallacies!

There are no exceptions. Because the head is the most complex organ, which contains various central nervous systems, the so-called brain is made up of various nervous systems.

There are no exceptions. If you have a head, you will have a brain, and if you have a head, you may not have a brain, but if you don't have a head, you must have no brain.

Because the head is at the top of the body, it is easy to think, and there are no exceptions in the head.

Because the brain is the highest commander of the human body. Its position should also be the highest, so all in the head. There are also animals whose brains are not in the head.

At present, according to scientists, no organism has been found that the brain is not in the head. Because the brain is the highest commander of the human body, he should be at the top. All living creatures have very hard skulls on their heads, which are good at protecting their brains from damage.

According to scientific research, it has not yet been discovered, because the heads of both humans and animals have very hard skulls, which are the hardest bones in the body, which can protect the brain from damage.

For human beings, we can go to today's high civilization in less than 10,000 years, it is no exaggeration to say that it is a miracle in all creatures on the earth, the key development point is actually the so-called use of the brain to think, and we also know that basically all creatures are brains in the head, at this time people will ask most of the animals The brain is in the head,Is there anything that is not in the head? Actually, I think there should be, mainly depending on the impact of the environment.

First of all, we are indeed very high-tech, and we have a lot of observations about the creatures in nature, but we have not explored the whole earth, many things are not found by us, including the existence of some deep oceans, scientists have reached the depths of the ocean, and have found that there are fish without eyes, and fish with transparent bodies, which is completely different from our general cognition, this is the evolutionary problem caused by different influences, and the fundamental meaning of all organisms is to reproduce offspring. Therefore, the first point must be adapted to the environment, otherwise it will only be ruthlessly eliminated, which is the natural selection of nature.

For example, the early earth overlord dinosaur, if it is said to be size, attack power, defense and the like, it is completely impossible to find the existence of shortcomings, but its ability to adapt to the environment is too poor, and then because the asteroid fell to the earth, the volcanic eruption, tsunami, etc., directly led to all changes in the environment, and finally could not adapt to be ruthlessly wiped out, which is the consequence of the tragedy.

So the environment is very important, our human science and technology is actually a lot of the depths of the earth we can't explore, at least at the moment we can't do exploration, so the environment of these places is not what we can imagine, it is likely that the creatures in these places are beyond our imagination, there are creatures whose brains are not in the head, this is a great possibility, after all, the natural world is very large and extensive, and many secrets are not what we can imagine.