We all know that the neck of the deer is very long, so what is the purpose of its neck?

We all know that the neck of the deer is very long, so what is the purpose of its neck? Everyone knows that the neck of the giraffe avoided competition with other animals during the evolution, so in order to eat the leaves of the tree in higher places, the neck became longer and longer, giving rise to the giraffe it is today. But scientists have found that food may not be the main cause of giraffes' longer necks during evolution.

So what is the reason why giraffes have such long necks? Why Is A Giraffe's Neck That Long? Maybe our previous thinking was completely wrong.

The most distributed place for giraffes is in Africa, where most of the animals are herbivores. Their main food is leaves or twigs.

Because African trees are scarce, most of the trees are umbrella-shaped, so now, there are fewer words under the trees, and giraffes have no food in order to eat more leaves in the process of evolution, and giraffes with shorter and shorter necks have no food, and they are gradually eliminated in the process of evolution, and only giraffes with long necks remain until today. Giraffes are generally 4 to 5 meters tall and are the tallest animals available. But does a giraffe's neck really grow because it eats leaves?

So, aren't we human beings able to stand firm every day? Moreover, in hundreds of years, there will be a qualitative leap in the height of human beings. In fact, giraffes have such words on their necks.

We all know that the animal that can eat tall leaves in the habitat of giraffes is the African elephant. So when the giraffe has a longer neck, it competes with the African elephant for food. But based on the size of the giraffe, they cannot have an advantage in the competition of African elephants, so there is no need to make the neck that long.

Moreover, scientists have found that not only giraffes eat tall leaves, but low leaves are also food for everyday life. So the neck is long, and the low leaves are easy to eat, so it doesn't make sense for the neck to grow that long. So, what is another reason for giraffes' necks to get longer?

If any creature needs to reproduce, isn't it the reason for giraffes to have longer necks? Giraffes have a gentle temper but use their full body abilities when the opposite sex argues, so the length of their necks seems to be very beneficial in their fights. The longer the neck, the heavier the head, the attack power increases significantly when fighting, and the longer the neck, the stronger the giraffe's muscles, and of course, it is also easy to be loved by the opposite sex.

Giraffes may speculate that in order to breed their offspring, they constantly make their necks longer and have a higher probability of breeding offspring. Why Is A Giraffe's Neck That Long? Maybe our previous thinking was completely wrong.

With the passage of time, the genes of the giraffe's neck have undergone certain changes, and this trait will also be passed on to the offspring, so that people with short necks have no chance to reproduce offspring and are eliminated by natural selection, and to this day only giraffes with long necks remain. There is no definitive conclusion on the evolution of giraffe necks, and scientists need to continue to explore.

First of all, it is likely to eat the leaves of the trees in high places, secondly, it may have a certain effect of fighting, and finally it should be a certain reason to attract a mate, which can also play a certain role in stability, and can also see further.

Its neck is mainly used for foraging and protecting itself. The giraffe's neck is long because its food is in high places, which makes it easy to eat and protects against other animals.

The main thing is to eat higher food, after all, giraffes eat a lot of food, and at the same time have a lot of help.

The giraffe's neck allows it to eat food while also protecting itself, and it also increases its height so that it can forage for food and compete with other animals.

1. Because he wants to eat the leaves of the tree, after a long, long evolution, his neck is particularly long.

2. In the eyes of many people, such a long neck only brings them distress. But many people forget that her long neck can actually bring great benefits. For example, a long neck can often increase their height.

to be able to eat fresh leaves higher on the branches. Not only that, but the air they breathe is fresher than that of other animals.

3. And the most important reason is that such characteristics can give them a better vision and allow them to find the enemy on the grassland earlier. This also greatly reduces the risk of occurrence. However, there are many troubles that it brings.

After all, such a long neck is also very inconvenient.

3. But in fact, these are the laws of natural evolution. If such a long neck was useless, the giraffe would have been extinct long ago. Therefore, there is a certain reason why many animals have different body structures.

Species evolution, since the trees in the savanna are mostly umbrella-shaped, and the leaves are concentrated in the upper layer, giraffes have evolved longer necks and limbs, which can eat leaves. There is only one species of long-necked closed-headed deer in the giraffe subfamily, which is widely distributed in the sparse tree steppe area of Africa, and is the tallest animal in existence, and it is also one of the most familiar African animals.

Because giraffes' necks are very high, when they lower their heads, the membranes behind their ears regulate blood pressure and prevent high blood pressure. The tongue of the giraffe is only 40 cm, it is black, the lips are thin and flexible, which can avoid the tongue with the dense long spines around the plant cleverly curled to hide the leaf layer inside the viscous saliva.

The long necks of giraffes, they live in the hot savannahs and are able to adapt to their surroundings due to their large surface area, which favors heat dissipation. The lung capacity is also large, which is conducive to breathing fresh air and exhaust gas. Because giraffes have long legs, it is inconvenient to drink water.

They drink on their front legs or on their knees, and are easily attacked by their relatives, so giraffes that live in groups often do not drink together.

According to the theory of evolution, long-necked deer can eat the leaves of taller trees, so they have an advantage over short-necked deer, and after a long period of survival of the fittest, they evolved into the giraffe we see today.

Giraffes are the tallest animals on land and are over 5 meters tall. The most conspicuous is its neck, which occupies almost half of its height. 15 million years ago, giraffe ancestors roamed the vast grasslands of Africa like ants, with few distinguishing features other than long necks.

In the process of evolution, organisms will follow the physiological characteristics of useful aspects, and the more and more useful, the useless and useful aspects will tend to degenerate, in theory, most biologists have gained recognition, and at the same time, it can explain the causes of biological characteristics very well, as shown in the figure below, the evolution of animal limbs is so basic in relation to the status of human arms.

They are able to survive on higher branches and get more food, while those with smaller necks begin to shrunk away, which is what we call survival of the fittest! For a giraffe, the brain is about two meters higher than the heart, and the heart must be large and powerful. Only then does the heart have to pump blood under high pressure to reach the brain.

Two male giraffes stand side by side and slam the back of their heads into each other in a duel for the right to mate with the female. Their skulls are very thick, which makes them very good at duels.

Their head is like a powerful hammer that can break the bones of their opponents The mass of a giraffe is simple, you just need to weigh it. But how do you calculate the surface area of a giraffe? The researchers divided the giraffe's surface into four parts:

Head, neck, torso, thighs and calves. If you use a body part regularly, it will become stronger, and if you don't use it regularly, it will become weaker. The skills acquired by an individual can be passed on to the next generation.

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This is because in ancient times, there would often be drought years, so many plants on the ground dried up, and some of the rest were eaten by other animals, so they had no food to eat, and those deer with long necks were able to eat the leaves of the trees in high places, and the deer with short necks died, so there were deer with long necks, and the deer with short necks were eliminated.

As a result of long-term evolution, because giraffes need to eat leaves from high places frequently, their necks will slowly grow longer and longer.

This is planned according to one's own physical characteristics, probably to adapt to the environment in which it is lived.

The giraffe's long neck is the result of natural selection. The ancestors of the giraffe used their necks more and more developed in the struggle for food, survival and competition, so that the neck of the giraffe gradually became longer and longer as the generations continued. The giraffe's long neck and long legs are good cooling "cooling towers".

They live in hot savannahs, and due to their large surface area, they are conducive to heat dissipation and adapt well to their surroundings. The lung capacity is also large, which is conducive to breathing fresh air and expelling exhaust gases. <

The giraffe's long neck is the result of natural selection. The ancestors of the giraffe used their necks more and more developed in the struggle for food, survival and competition, so that the neck of the giraffe gradually became longer and longer as the generations continued. The giraffe's long neck and long legs are good cooling "cooling towers".

They live in hot savannahs, and due to their large surface area, they are conducive to heat dissipation and adapt well to their surroundings. The lung capacity is also large, which is conducive to breathing fresh air and expelling exhaust gases.

The giraffe's neck is so long is the result of natural selection. The ancestors of giraffes lived mainly by grazing, and in order to survive, they had to feed on the leaves of tall trees, so they had to stretch their necks. As the organs that are often used become more and more developed, the organs that are not used deteriorate, causing the giraffe's neck to gradually lengthen.

At the same time, the ancestors of giraffes lived in the hot grasslands, and the ancestors with long necks had a larger surface area, which was conducive to the dissipation of heat, so as to better adapt to the environment. In this way, the survival of the fittest, the short-necked giraffe ancestors will be eliminated, and the surviving giraffes will all have long necks. <

The giraffe's neck is so long is the result of natural selection. The ancestors of giraffes mainly lived by grazing, and the area where they lived was arid due to changing natural conditions, and in order to survive, they had to stick their necks out to feed on the leaves of tall trees. As the organs that are often used become more and more developed, the organs that are not used deteriorate, causing the giraffe's neck to gradually lengthen.

At the same time, the ancestors of giraffes lived in the hot grasslands, and the ancestors with long necks had a larger surface area, which was conducive to the dissipation of heat, so as to better adapt to the environment. In this way, the survival of the fittest, the short-necked giraffe ancestors will be eliminated, and the surviving giraffes will all have long necks.