Asian eyes | Why do Asians have slanted eyes?

Surely you have noticed this characteristic that particularly defines Asians, the narrowed eyes, as they say, or torn, a curiosity, no doubt, in which we all look, but why do Asians have the slanted eyes? Have you asked yourself this question? We at Science Daily Online were questioning this not so long ago, and as a result we decided to thoroughly investigate this issue to get to the origin of the matter.Do you want to find out why Asians have slanted eyes? Then you continue reading this article so you can find out everything about it.

Content Index

Why do Asians have slanted eyes?

A genetic mutation? An evolutionary difference? Maybe because we descend from different ancestors? Why do Asians have slanted eyes?

To begin with, we have to tell you that it is not usually called slanted or slanted eyes.That physical characteristic that differentiates, mainly, people of Asian origin from those of Western origin receives the name of 'Mongolian flange', 'epicanthus' or 'epicanthal fold'. It is a fold of the upper eyelid that covers the inner corner of the eye , covering the lacrimal caruncula and extending downwards joining with the skin of the face.

For a long time the belief spread that the narrowed or torn eyes were due to the bony structure that contains the eyeball had an almond shape in people of origin Asian: In parallel, it was said that the same eyeball of these people had this shape and was not spherical , like that of the Westerners.But these theories, the truth, did not gain greater force, for lack of scientific verification.

In any case, even without the approval of the scientific community, this was the theory that most expanded in popular knowledge , to the point where, at present, it seems to be the more known.Is it true? And, if not, then why do Asians have slanted eyes? What is the fundamental difference between your eyes and ours? Is there any important anatomical difference? Let's find out.

1.The anatomy of the eye

Asian eyes | Why do Asians have slanted eyes?

Are Asians' eyes different from those of the rest of the world?

To begin, we have to clarify that it is false that the Chinese have the eyeball unlike any other person. Within the human species, in fact, anatomically speaking, we cannot find any difference between each other's eyes, beyond the color of the iris. Or at least It occurs in people with a regular anatomy.The truth is that, as far as the eye is concerned, we all present the same elements, with the same size and, obviously, in the same place.Only the pigmentation of the iris is what It can vary, presenting different colors, blue, brown, green, although never black, and there are even cases in which both eyes of the same person can have different colors.ntos, what is called heterochromia.And even today there are methods to change the color of the eyes.

By the way, did you know that the human iris has no blue or green pigments?

The color of the iris is something that can also depend on the breed, although today, in a society as mixed as ours, it is a distinction that has almost lost its meaning.However, it is still quite common to find a predominant iris pigmentation in some regions , which is nothing abnormal However, the eyes of Asians are still quite particular, because Asians have slanted eyes.Well, the quid of the matter is not really in the eye, but in the eyelid : That is where the fundamental difference lies between those who have slanted eyes and those who do not.

Now, it is important to clarify that, since there is no difference in the eyeball, it would be absurd to assume that Asians see differently from us, as some theories, without major scientific basis, affirm. The globe is, in essence, the same, and the vision too. Clarified this, it is possible to maintain the doubt: what makes Asian eyes so particular ? And why do Asians have slanted eyes, what made them go like this? Let's find out.

2.Asian eyes

Asian eyes | Why do Asians have slanted eyes?

Torn eyes are a particular characteristic of Asians, although not exclusive to them.

The truth is that the Mongolian flange, as it is called, It seems to have its origin in an adaptive need for both intense light and extreme cold as well as strong winds , depending on the place where it occurred.On the one hand, this genetic mutation allowed different groups of homo sapiens that arrived in artistic zones acquired an evolutionary advantage to be able to adapt and survive extreme conditions of cold and permanent snow.On the other hand, the groups of sapiens settled in warm areas of savannah and desert, they would also develop this mutation in order to protect their eyes from the strong winds and sandstorms of these zones.With regard to torn eyes, this seems to be the most plausible theory.

However, a group of Chinese specialists argue that the Mongolian flange is a consequence of the different evolutionary branch of these individuals who, they claim, they come from a branch of hominids different from that of Westerners: the Homo Erectus Pekinensis . However, this theory is rejected by most contemporary anthropologists , who claim that only the African Homo Erectus survived the evolution, later becoming the Homo Sapiens .Also, it is also ruled out by the fact that the slanted eyes are not an exclusive feature of Asians, although we commonly identify her with them.

Why do Asians have slanted eyes, then? Well, well, in Darwin's words, because the one who survives is not the strongest, but the one who best adapts: probably a few thousand years ago, the Asians generated this characteristic, or, rather, some of they generated this characteristic, and just these were the ones that were more likely to reproduce and survive , given that this mutation generated them an advantage over others, and, therefore, they managed to perpetuate their genes.Thus, this characteristic was perpetuated, and although it is not fundamental for them today, they have preserved it.

3.We were all Chinese sometime

Asian eyes | Why do Asians have slanted eyes?

Why do Asians have slanted eyes? At some point we all had Chinese eyes.

The truth is that this feature is not too alien to us either. The truth is that we were all Chinese once or, rather, we all developed the Mongolian flange at some point of our lives. And then, why do Asians have slanted eyes and we don't? How do you explain that?

Well, in the West, although we all develop the slanted eyes, we do it only while we are in the womb.However, this characteristic is often lost with development of the embryo, between the third and sixth month of pregnancy , which is why, once we were born, we did not find out that we were once as Asian as the one we have, at least as far as eyes are concerned.

4.Other torn eyes

Asian eyes | Why do Asians have slanted eyes?

The truth is that slanted eyes are not exclusive to Asians.

But now, one moment, the thing is not only there.It turns out that although the eyes are torn It is a characteristic that usually defines Asians quite a bit, understand Chinese, Japanese, Koreans, among others, it is not a unique or exclusive characteristic of them.In fact, the torn eyes are m Frequent of what is believed, and found not only in Asia , but also in some parts of the Nordic countries, for example, also in America (especially in Native Americans, as they are usually called, or indigenous), going through the Eskimos and basically, in any corner of the earth, although nowhere as often as in Asia.

It is precisely this fact, the fact that this feature is so widespread in the world (and not only because the world today is interconnected or by cultural hodgepodge, but because the trait appeared in different cultures), which gives experts to think that Asians do not come from Homo Erectus Pekinensis, but this trait was generated with the pure advance of evolution human, for the sheer need for survival. Although, at the end of the day, they are only theories that scientists debate, some with greater acceptance and others with less consistency, but none clearly definitive, at least until now.

And what do we believe then? Why do Asians have slanted eyes? Well, we are inclined to think what scientific evidence indicates, without this meaning an absolute certainty about it. After all, there is always the possibility of doubting, because science is the one that can best approximate us to the reality, but this does not mean that it is free of error. But, at least until there is more information about it, we will tell you that the most likely thesis is this.

Well, until here We leave our article about why Asians have slanted eyes.We hope we have helped you solve your doubts.Do you have anything to add to this article? Do you know of any other particularity of the slanted eyes? Well, write us through the comments, in Science Daily Online we believe that nothing enriches knowledge like debate, always in an environment of healthy respect, so we encourage you to do so, we will be willing to read you!

If you liked this article you might also be interested: The secret of the gray eyes, Optograms and Optography and Curiosities of the eyes.

Comments

There are 4 personality classes. You will not like the most common

Talking about personality classes is not something new.Classification by types of human beings has existed since time immemorial, almost always to justify some kind of discrimination or forced servitude; but for a couple of centuries, with the emergence of social sciences , interest in different personality types has been oriented to improve social behaviors, educational models and, In recent times, as a tool to formulate programs for robotics. There are 4 personality classes.The one that is more common you will NOT like Recently the magazine Science Advances published a study conducted by Spanish researchers from the Carlos III University, in which researchers from the universities of Zaragoza, Rovira and Virgili and Barcelona also participated, entitled “Human beings show a reduced set of behavioral phenotypes in daily games ”, In which the existence of 4 basic personality classes was determined when it comes to certain social dynamics that involve some kind of interactio...

Proven: Men are more likely to be idiots

That nobody take this as a sexist article.Maybe if a man wrote it, he would give it another approach, but that science confirms something that women have been suspecting for a lifetime, is a triumph.The fact is that the British Medical Journal recently confirmed the theory of male idiocy and that many times they do very stupid things. The funny thing is that the study has been led by a 15-year-old British teenager named Ben Lendrem, the son of a prestigious medical professional, who has become the youngest researcher in history to publish in a medical journal. Would he be fed up? Young Ben to listen again and again to the famous stereotype that the boys are idiots , and even to check it among their parents? What kind of guy is asked to check the theory of male idiocy? The fact that a male, moreover, a young boy, has been the promoter of an investigation of this seems to me enough argument not to consider it a sexist initiative. Men and women do not behave the same Other inv...

Bears addicted to jet fuel | Our impact on Earth

Our planet is full of curiosities and almost all the species that live in it, too.Our Science Daily Online team knows it well and articles like «50 rare animals of the world.Fascinating and curious» is a good example of what you we say.In the case of the following article the protagonists are bears, but not just any bears or those super endearing we see in any National Geographic documentary.The bears that we are going to talk about next are some bears addicts .Addicts to the fuel of an airplane.Incredible, right? What do we know about these addicted bears? These curious and strange bears are in the Reserve Natural Kronotsky, in the extreme east of Russia.These are brown bears who love to suck kerosene and gasoline from the containers qu e remain in this reserve .It is believed that they are the largest brown bears in the world, weighing more than 500 kilos. This fuel that these addicted bears breathe is the one used to generate energy in the generators and helicopters used ...

10 curious things that can happen to you while you sleep

The human being spends about a third of his life sleeping and during all this time it is normal for curious and even strange things to happen to us, the problem is that we usually do not realize them.Fortunately Scientists who study sleep and all the effects it has on our body. There are hundreds of sleep-related disorders but in this article we want to comment on some of the most curious things that can usually happen to a person while sleeping without becoming a problem, surely you will be surprised with more than one.Has any of these situations ever happened to you? 10 curious things that occur to us while we sleep 1.Spam full length Normally when we suffer these spasms we realize Even when you are half-asleep, but if you sleep with a person who suffers from them you will surely have taken more than one scare.According to studies on this subject up to 70% of people usually "suffer" it. Stress, caffeine or anxiety are potentiators of this effect, although i...

5 of the most dangerous beaches in the world | Alert!

The first thing that comes to mind when we think of a beach is the paradisiacal image of white sand and crystalline waters, but this is not always the case. Many times what are usually beautiful scenarios can become deadly traps .In this article we will present 5 of the most dangerous beaches in the world in addition to the most fascinating, which you should be very careful to avoid. Some of them because of dirt and others because the aggressive species that inhabit its waters, but all the beaches that you will discover in this article are tremendously dangerous for some reasons or others.They are practically spread across the five continents and nowhere on our planet Earth is safe from wild nature and from the dangers that these beaches contain.If you want to discover them, you only have to continue reading these lines. Let's go! Content Index 5 of the most dangerous beaches in the world | Alert! 1.Zipolite Beach Mexico is one of the most paradisiacal places known, ...

The mystery of prehistoric giant mushrooms

Imagine a primitive scenario , halfway between fantasy and mystery.It is a time where Earth has only two continents: Euramerica , to the north, and Gondwana , to the south.Imagine now that you are walking on a soil almost devoid of vegetation, there are hardly any plants, and your steps explode in the thicket of a rocky stage, where they stand... The authentic giants of the Earth: the prototaxites.These giant mushrooms were like strange mastiffs that could reach almost 8 meters.The higher the height, the greater the possibility of escaping their spores, and hence their sovereignty In these scenarios of Silurico and Devonico , almost 420 million years ago... But, what were they? Trees, bushes? ...The prototaxites were fungi.If you have felt a chill or have been stung by curiosity, do not hesitate to know more about these creatures worthy of appearing in the "Lost World" of Jules Verne. The era in which the Prototaxites, giant fungi, dominated the Earth Scientist...

The Haitian ZOMBIS CREATOR substance

Haiti is a republic located in the West Indies and is one of the poorest countries in the world.After the terrible earthquake it suffered, it has barely raised its head and 80 % of its population lives below the poverty line.They basically subsist on fishing and agriculture.Perhaps this situation of their population makes it more susceptible to practices such as voodoo and also to the use of herbs and natural remedies . Why do scientists travel to Haiti? Since the 1980s, groups of scientists travel to Haiti to study the flora of the country in search of plants that can be used as base for new pharmacological products .They are especially interested in hallucinogenic plants.They want, among other things, to discover the exact composition of the « zombie-creating powders ». They think that if the complete formula of this substance is discovered, they could obtain a new type of anesthesia that would make the patient pain insensitive and that he kept him paralyzed and...

The "Eye of Heaven": the world's largest radio telescope

In 2003 China placed its first astronaut in space and since then it has not stopped advancing in its space program, which includes launching satellites, a space station, unmanned ships to the moon and, now, the construction of the radio telescope The world's largest, the "Eye of Heaven." The "Eye of Heaven", the world's largest radio telescope Remember the first scenes of Contact , that movie based on a novel by Carl Sagan and in which Jodie Foster epitomizes an astronomy that runs into an extraterrestrial life signal captured by the radio telescope from Arecibo (Puerto Rico)? At that time, with its 350 meters in diameter, Arecibo was the largest radio telescope in the world, but it is no longer so, now it is Tianyan , which translated from Mandarin would become “the Eye of Heaven.” This radio telescope, built in Pintang County (Guizhou Province), for a period of five years and with an approximate cost of 160 million euros, It is officially call...

The oldest beers and wines that have been discovered

Did you know that beers and wines have been the oldest alcoholic beverages of which we have news? And that there is a theory rolling around that ensures that both writing and agriculture-perhaps two of the most important technologies of humanity-were born, or invented, thanks to these drinks? It seems joke, but the truth is that alcohol has been present in human life since prehistoric times, so we will talk about the oldest beers and wines that have been found. The oldest beers and wines that have been discovered China, ancient Egypt, the Vikings, pre-Inca cultures, Sumeria, ancient Greece or the Canaanites are some of the towns where traces of manufacturing both beer have been found as of wine, as well as special sites for storage. In China, in 2004, a group of archaeologists found a site today considered as the oldest brewery , in the province of Shannxi , north of the country; they found traces of an alcoholic concoction whose base was honey, some type of fruits and ric...

Why do we sometimes sound that "we leave our body"?

In Science Daily Online we are always inquiring about the world of dreams.In this article we investigate a very special kind of dream experience: «leaving the body». There are many people who claim to have had an experience of these characteristics: that of being asleep and suddenly feeling like a part of them leaves the body. It is common, for example, to look from above, to feel a sensation of weightlessness and observing the room and oneself in perfect detail. It is what is commonly known as «extracorporeal experience» and, although there is no scientific agreement that clarifies why This happens, the testimonies of many people are there.It is a mystery and, since we do not have any theoretical and scientific corpus that offers us an answer, it has been the field of the paranormal who collects these facts to try to give truth to a aspect: the existence of the soul, of that independent energy nte of our body. Let us analyze, then, the two trends - scientist and super...

Science Daily Online

Search This Blog