The giant kraken is a terrifying monster. Are giant squids just a legend? Does the kraken really exist?

Into the dark unknown sea ​​waters on great depth live mysterious creatures, which have terrified sailors since ancient times. They are secretive and elusive, and are still poorly understood. In medieval legends they are represented as monsters that attack ships and sink them.

According to the sailors, they look like a floating island with huge tentacles that reach the peak of the mast, bloodthirsty and ferocious. IN literary works These creatures received the name "krakens".

The first information about them is found in the Viking chronicles, which speak of huge sea monsters attacking ships. There are also references to krakens in the works of Homer and Aristotle. On the walls of ancient temples you can find images of a monster dominating the sea. Over time, references to these creatures have become less numerous. However, by the middle of the 18th century, the world again remembered the storm of the seas. In 1768, this monster attacked the English whaling ship Arrow; the crew and ship miraculously escaped death. According to the sailors, they encountered a “small living island.”

In 1810, the British ship Celestine, sailing on the Reykjavik-Oslo voyage, encountered something reaching a diameter of up to 50 meters. It was not possible to avoid the meeting, and the ship was severely damaged by the tentacles of an unknown monster, so it was necessary to return back to the port.

In 1861, the kraken attacked the French ship Adekton, and in 1874 sank the English Pearl. However, despite all these cases, scientific world thought giant monster nothing more than fiction. Until in 1873 he received material evidence of its existence.

On October 26, 1873, English fishermen discovered some huge and presumably dead sea animal in one of the bays. Wanting to find out what it was, they swam up to it in a boat and poked it with a hook. In response to this, the creature suddenly came to life and wrapped its tentacles around the boat, wanting to pull it to the bottom. The fishermen managed to fight back and get a trophy - one of the tentacles, which was transferred to the local museum.

A month later, another octopus 10 meters long was caught in the same area. So the myth became reality.
Previously, the likelihood of encounters with these deep-sea inhabitants was more real. However, in lately practically unheard of. One of latest events, associated with these creatures dates back to 2011, when the American yacht Zvezda was attacked. Of the entire crew and people on board, only one person was able to survive. Tragic story"Stars" - the last one famous case about a collision with a giant octopus.

So, what is this mysterious ship hunter?

There is still no clear idea of ​​what species this animal belongs to; scientists consider it a squid, an octopus, and a cuttlefish. This deep sea dweller reaches several meters in length, presumably some individuals can grow to gigantic sizes.

Its head is cylindrical with a chitinous beak in the middle, which it can use to bite through steel cables. The eyes reach 25 cm in diameter.

The habitat of these creatures extends throughout the World Ocean, starting their journey from the deep waters of the Arctic and Antarctica. At one time it was believed that their habitat was the Bermuda Triangle, and they were the culprits mysterious disappearances ships in this place.

Hypothesis of the appearance of the Kraken

Where this mysterious animal came from is still not known. There are several theories about its origin. That this is the only creature that has survived ecological disaster"time of the dinosaurs" That it was created during Nazi experiments at secret Antarctic bases. That perhaps this is a mutation of an ordinary squid or even an extraterrestrial intelligence.

Even in our time of advanced technology, little has been studied about krakens. Since no one saw them alive, all individuals exceeding 20 m were found exclusively dead. In addition, despite their enormous size, these creatures successfully avoid being photographed and videotaped. So the search for this deep-sea monster continues...

Kraken- a legendary sea monster, reports of which have come down from ancient times. Legends about the kraken claim that this creature lives off the coast of Norway and Iceland. Opinions about appearance The krakens disperse. There is evidence describing it as a gigantic squid, while other descriptions present a monster in the form of an octopus.Originally this word meant any animal of a deformed shape that was very different from its own kind. However, later it began to be used in many languages ​​with a specific meaning - “legendary sea monster.”

The Kraken exists

The first written mentions of encounters with the kraken were recorded by the Danish bishop Erik Pontoppidan. In 1752, he recorded various oral traditions about this mysterious creature.

The bishop in his writings presents the kraken as a crab fish with gigantic size and capable of dragging ships into ocean depths. The size of this creature was truly incredible; it was comparable to a small island. The giant kraken was very dangerous precisely because of its size and the speed with which it sank to the bottom. Its downward movement generated a strong whirlpool, leaving the ship no chance of salvation. The Kraken typically hibernated on the seabed. When he slept, people gathered around him large number fish In the old days, according to some stories, the most desperate fishermen, going to big risk, threw nets directly over the kraken while it was sleeping. The kraken is believed to be responsible for many maritime disasters. Sailors in the old days had no doubt that the kraken existed.

The Mystery of Atlantis

Since the 18th century, a number of zoologists have put forward the theory that the kraken could be a giant octopus. Carl Linnaeus, a famous naturalist, in his book “The System of Nature” classified real-life marine organisms, and he also introduced the kraken into his system, which he presented as a cephalopod (however, he later removed it from there).

In this regard, it should be remembered that in many mysterious stories Giant cephalopods like the kraken often feature, either acting on someone's orders or even of their own free will. The authors of modern films also often use these motifs. Thus, the film “Leaders of Atlantis”, released in 1978, includes in its plot a kraken, like a giant octopus or squid, which drags the ship of treasure hunters who encroached on the forbidden statue to the bottom, and the crew itself - to Atlantis, which miraculously exists in the ocean. In this film, the mystery of Atlantis and the Kraken are intricately interconnected.

Giant Kraken Squid

In 1861, a piece of the body of a giant squid was discovered, which led many to believe that the giant squid was the kraken. Over the next twenty years, many more remains of similar creatures were discovered on the northern coast of Europe. Probably changed at sea temperature regime, and giant squids, which had previously been hiding in depths inaccessible to humans, rose to the surface. The stories of fishermen who hunted sperm whales say that on the carcasses of the sperm whales that they caught, there were traces of giant tentacles.

In the 20th century, they repeatedly tried to catch the legendary kraken, but only young specimens were caught, the length of which was no more than 5 m. Sometimes fragments of the torso of larger specimens were caught. And only in 2004, Japanese oceanologists managed to photograph a fairly large specimen - 10 meters.

The giant squids were given the name Architeuthis. The real giant squid has never been caught. A number of museums display well-preserved remains of individuals found already dead. In particular, the London Natural History Museum displays a nine-meter squid stored in formaldehyde. In the city of Melbourne, a seven-meter squid frozen in a piece of ice is presented.

However, even squids of this size cannot cause significant damage to ships, but there is every reason to believe that giant squids living at the depths have many large sizes(there have been reports of 60-meter individuals), leading some scientists to believe that giant kraken from Scandinavian myths there may be a squid of unprecedented size.

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Perhaps the most famous sea monster is the kraken. According to legends, it lives off the coast of Norway and Iceland. There are different opinions about what his appearance is. Some describe it as a giant squid, others as an octopus. The first handwritten mention of the kraken can be found in the Danish bishop Erik Pontoppidan, who in 1752 recorded various oral legends about it. Initially, the word “kgake” was used to refer to any deformed animal that was very different from its own kind. Later it passed into many languages ​​and began to mean “legendary sea monster.”

In the bishop's writings, the kraken appears as a crab fish of enormous size and capable of dragging ships to the bottom of the sea. Its dimensions were truly colossal; it was compared to a small island. Moreover, it was dangerous precisely because of its size and the speed with which it sank to the bottom. This created a strong whirlpool, which destroyed the ships. The kraken spent most of its time hibernating on the seabed, and then a huge number of fish swam around it. Some fishermen allegedly even took the risk and cast their nets directly over the sleeping kraken. The kraken is believed to be to blame for many maritime disasters.
According to Pliny the Younger, remoras surrounded the ships of the fleet of Mark Antony and Cleopatra, which to some extent contributed to his defeat.
In the XVIII-XIX centuries. Some zoologists have suggested that the kraken may be giant octopus. The natural scientist Carl Linnaeus, in his book “System of Nature,” created a classification of actually existing marine organisms, into which he also introduced the kraken, presenting it as a cephalopod. A little later he crossed it out from there.

In 1861, a piece of the body was found huge squid. Over the next two decades, many remains of similar creatures were also discovered on the northern coast of Europe. This was due to the fact that the temperature regime in the sea changed, which forced the creatures to rise to the surface. According to the stories of some fishermen, the carcasses of sperm whales they caught also had marks resembling giant tentacles.
Throughout the 20th century. Repeated attempts were made to catch the legendary kraken. But it was possible to catch only young individuals whose height was approximately 5 m in length, or only parts of the bodies of larger individuals were caught. Only in 2004 did Japanese oceanologists photograph a fairly large specimen. Before that, for 2 years they monitored the routes of sperm whales, which eat squid. Finally, they managed to catch a giant squid with bait, whose length was 10 m. For four hours, the animal tried to escape
· 0 bait, and oceanologists took about several photographs that show that the squid has very aggressive behavior.
Giant squids are called architeuthis. To date, not a single living specimen has been caught. In several museums you can see the preserved remains of individuals that were discovered already dead. Thus, the London Museum of Quality History displays a nine-meter squid preserved in formaldehyde. To the general public A seven-meter squid is available in the Melbourne Aquarium, frozen in a piece of ice.
But can even such a giant squid harm ships? Its length can be more than 10 m.
Females are larger than males. The weight of squid reaches several hundred kilograms. This is not enough to damage a large vessel. But giant squids are predatory and can still cause harm to swimmers or small boats.
In the movies, giant squids pierce the skin of ships with their tentacles, but in reality this is impossible, since they lack a skeleton, so they can only stretch and tear their prey. Outside aquatic environment they are very helpless, but in water they have sufficient strength and can resist sea ​​predators. Squids prefer to live on the bottom and rarely appear on the surface, but small individuals can jump out of the water to a fairly large height.
Giant squids have the largest eyes of any living creature. Their diameter reaches more than 30 cm. The tentacles are equipped with strong suction cups, the diameter of which is up to 5 cm. They help to firmly hold the prey. The composition of the bodies and Lu of the giant squid includes ammonium chloride (alcohol), which preserves its zero honor. True, such squid should not be eaten.” All these features allow some scientists to believe that the giant squid may be the legendary kraken.

Marine life is very diverse and sometimes frightening. The most bizarre forms of life can lurk in the abyss of the seas, because humanity has still not been able to fully explore all the expanses of water. And sailors have long had legends about a powerful creature that is capable of sinking an entire fleet or convoy with just its appearance. About a creature whose appearance inspires horror, and whose size makes you freeze in amazement. About a creature the likes of which have never been seen in history. And if the sky above the world belongs to and, the earth under our feet also belongs to the Tarascans, then the expanses of the seas belong to only one creature - the kraken.

What does a kraken look like?

To say that the kraken is huge would be an understatement. For centuries, a kraken resting in the abyss of water can reach simply unimaginable sizes of several tens of kilometers. He is truly huge and scary. Outwardly, it is somewhat similar to a squid - the same elongated body, the same tentacles with suction cups, the same eyes and a special organ for moving underwater using air propulsion. But the sizes of a kraken and an ordinary squid are not even close to comparable. Ships that disturbed the peace of the kraken during the Renaissance sank from just one strike of the tentacle on the water.

The Kraken is mentioned as one of the most terrifying sea ​​monsters. But there is someone to whom even he must obey. IN different peoples it is called by different names. But all the legends say the same thing - this is the God of the seas and the ruler of all sea ​​creatures. And it doesn’t matter what you call this super creature - one of his orders is enough for the kraken to throw off the shackles of a hundred years of sleep and do what he was assigned.

In general, legends often mention a certain artifact that gave a person the ability to control the kraken. This creature is by no means lazy and absolutely good-natured, unlike its owners. Without orders, a Kraken can sleep for centuries, or even millennia, without disturbing anyone with its awakening. Or it can change the appearance of an entire coast in a few days if its peace is disturbed or if an order is given to it. Perhaps, among all creatures, the kraken has the greatest power, but also the most peaceful character.

One or many

You can often find references to the fact that many such creatures are in the service of the Sea God. But it’s very hard to imagine that this is true. The huge size of the kraken and its strength make it possible to believe that this creature can be on different ends of the earth at the same time, but it is very difficult to imagine that there are two such creatures. How terrifying could a battle like this be?

In some epics, there are references to battles between krakens, which suggests that to this day almost all krakens died in these terrible battles, and the Sea God commands the last survivors. A creature that does not produce offspring, free to eat and rest, has reached such enormous dimensions that one can only wonder how hunger has not yet driven it to land and why it has not yet been encountered by researchers. Perhaps the structure of the kraken's skin and tissues makes it impossible to detect it, and the creature's hundred-year sleep hid it in the sands of the seabed? Or maybe there is a depression left in the ocean, where researchers have not yet looked, but where this creature is resting. We can only hope that even if it is found, the researchers will be smart enough not to awaken the wrath of the thousand-year-old monster and not try to destroy it with the help of any weapons.

On the left side of the image you can see a mosaic of images taken by the Cassini spacecraft in the near-infrared range. The photo shows the polar seas and the reflection from their surface sunlight. The reflection is located in the southern part of the Kraken Sea, the largest body of water on Titan. This reservoir is not filled with water at all, but with liquid methane and a mixture of other hydrocarbons. On the right side of the image you can see images of the Kraken Sea taken by Cassini's radar. Kraken is the name of a mythical monster that lived in northern seas. This name seems to hint at the hopes astrobiologists have for this mysterious alien sea.

Could life exist on Saturn's large moon Titan? This question is forcing astrobiologists and chemists to think very carefully and creatively about the chemistry of life and how it might differ on other planets from the chemistry of life on Earth. In February, a team of Cornell University researchers, including chemical engineering graduate student James Stevenson, planetary scientist Jonathan Lunin, and chemical engineer Paulette Clancy, published a groundbreaking paper suggesting that living cell membranes can form in the exotic chemical environment present on this amazing satellite.

In many ways, Titan is Earth's twin. It is the second largest satellite in solar system, He more planet Mercury. Like Earth, it has a dense atmosphere, the pressure of which at the surface is slightly higher than on Earth. Apart from Earth, Titan is the only object in our solar system that has accumulations of liquid on its surface. NASA's Cassini spacecraft discovered an abundance of lakes and even rivers in Titan's polar regions. The most big lake or sea, called the Kraken Sea, its area exceeds the area of ​​the Caspian Sea on Earth. From observations made by spacecraft and laboratory experiments, scientists have determined that Titan's atmosphere contains many complex organic compounds, from which life is built.

Looking at all this, one might get the impression that Titan is an extremely habitable place. The name "Kraken" was the name given to the mythical sea ​​monster, reflects the secret hopes of astrobiologists. But Titan is the alien twin of the Earth. It is almost 10 times further from the sun than Earth, and its surface temperature is a chilling -180 degrees Celsius. As we know, water is an integral part of life, but on the surface of Titan it is as hard as rock. The water ice there is like the silicon rocks on Earth that form the outer layers of the earth's crust.

The liquid filling Titan's lakes and rivers is not water, but liquid methane, most likely mixed with other substances such as liquid ethane, which are present in a gaseous state on Earth. If there is life in the seas of Titan, it does not resemble our ideas about life. This will be a completely alien form of life for us, the organic molecules of which are dissolved not in water, but in liquid methane. Is this even possible in principle?

A team from Cornell University studied one key part of this difficult question, having considered the possibility of existence cell membranes in liquid methane. All living cells are essentially a system of self-sustaining chemical reactions enclosed in a membrane. Scientists believe that cell membranes appeared at the very beginning of the history of life on Earth, and their formation may have been the first step towards the origin of life.

On Earth, everyone knows about cell membranes from school course biology. These membranes are made of large molecules called phospholipids. All phospholipid molecules have a head and a tail. The head is a phosphate group, where a phosphorus atom is bonded to several oxygen atoms. The tail consists of one or more strands of carbon atoms, 15–20 atoms long, to which hydrogen atoms are attached on each side. The head, due to the negative charge of the phosphate group, has an uneven distribution of electrical charge, which is why it is called polar. The tail, on the other hand, is electrically neutral.

Here on Earth, cell membranes consist of phospholipid molecules dissolved in water. The basis of phospholipids are carbon atoms ( gray), plus they also contain atoms of hydrogen (sky blue), phosphorus ( yellow), oxygen (red) and nitrogen ( blue). Due to the positive charge imparted by the choline group, which contains a nitrogen atom, and the negative charge of the phosphate group, the phospholipid head is polar and attracts water molecules. Thus, it is hydrophilic. The hydrocarbon tail is electrically neutral, so it is hydrophobic. The structure of the cell membrane depends on the electrical properties of phospholipids and water. Phospholipid molecules form a double layer - the hydrophilic heads in contact with water are on the outside, and the hydrophobic tails face inward, connecting to each other.

These electrical properties of phospholipid molecules determine how they behave in aqueous solution. If we talk about the electrical properties of water, then its molecule is polar. The electrons in a water molecule are more attracted to the oxygen atom than to the two hydrogen atoms. Therefore, on the side of the two hydrogen atoms, the water molecule has a small positive charge, and on the side of the oxygen atom, it has a small negative charge. These polar properties of water cause it to be attracted to the polar head of the phospholipid molecule, which is hydrophilic, and at the same time repelled by the non-polar tails, which are hydrophobic.

When phospholipid molecules are dissolved in water, the combined electrical properties of both substances cause the phospholipid molecules to form a membrane. The membrane closes into a small sphere called a liposome. Phospholipid molecules form a bilayer two molecules thick. Polar hydrophilic molecules form the outer part of the membrane bilayer, which is in contact with water on the inner and outer surfaces of the membrane. The hydrophobic tails are connected to each other in the inner part of the membrane. Although the phospholipid molecules remain stationary relative to their layer, with their heads facing outward and tails facing inward, the layers can still move relative to each other, giving the membrane sufficient mobility that life requires.

Phospholipid bilayer membranes are the basis of all cell membranes on earth. Even the liposome itself can grow, reproduce itself and facilitate the occurrence of certain chemical reactions necessary for the existence of living organisms. This is why some biochemists believe that the formation of liposomes was the first step towards the emergence of life. In any case, the formation of cell membranes must have occurred at an early stage of the origin of life on Earth.

On the left is water, a polar solvent consisting of hydrogen (H) and oxygen (O) atoms. Oxygen attracts electrons more strongly than hydrogen, so the hydrogen side of the molecule has a positive net charge, and the oxygen side has a negative net charge. Delta (δ) denotes a partial charge, that is, less than a whole positive or negative charge. On the right is methane, the symmetrical arrangement of hydrogen atoms (H) around a central carbon atom (C) makes it a non-polar solvent.

If life exists on Titan in one form or another, be it a sea monster or (most likely) microbes, then they cannot do without cell membranes, like all life on Earth. Could phospholipid bilayer membranes form in liquid methane on Titan? The answer is no. Unlike water, electric charge Methane molecules are distributed evenly. Methane does not have the polar properties of water, so it cannot attract the heads of phospholipid molecules. This ability is necessary for phospholipids to form the terrestrial cell membrane.

Experiments were carried out in which phospholipids were dissolved in non-polar liquids at terrestrial temperatures. room temperature. Under such conditions, phospholipids form a “reverse” bilayer membrane. The polar heads of phospholipid molecules are connected to each other in the center, attracted by their charges. The non-polar tails form the outer surface of the "reverse" membrane in contact with the non-polar solvent.

On the left - phospholipids are dissolved in water, in a polar solvent. They form a bilayer membrane, with polar, hydrophilic heads facing water and hydrophobic tails facing each other. On the right - phospholipids are dissolved in a non-polar solvent at earthly room temperature, under such conditions they form an inverse membrane with the polar heads facing each other and the non-polar tails facing outwards towards the non-polar solvent.

Could living organisms on Titan have a reverse phospholipid membrane? The Cornell team concluded that such a membrane is not suitable for life for two reasons. First, at the cryogenic temperatures of liquid methane, the tails of the phospholipids become rigid, thereby depriving the formed reverse membrane of any mobility necessary for the existence of life. Second, two key constituents of phospholipids, phosphorus and oxygen, are likely absent from Titan's methane lakes. In their search for cell membranes that might exist on Titan, the Cornell team had to go beyond the familiar high school biology course.

Although phospholipid membranes have been ruled out, scientists believe that any cell membrane on Titan would still be similar to the reverse phospholipid membrane produced in the laboratory. Such a membrane will consist of polar molecules connected to each other due to the difference in charges dissolved in non-polar liquid methane. What kind of molecules could these be? For answers, the researchers turned to data obtained from Cassini and from laboratory experiments that recreated chemical composition atmosphere of Titan.

It is known that Titan's atmosphere has a very complex chemical composition. It mainly consists of nitrogen and methane in gaseous form. When the Cassini spacecraft analyzed the composition of the atmosphere using spectroscopy, it was discovered that the atmosphere contained traces of a wide variety of carbon, nitrogen and hydrogen compounds called nitriles and amines. The researchers simulated the chemical composition of Titan's atmosphere in the laboratory by exposing a mixture of nitrogen and methane to energy sources that mimic Titan's sunlight. As a result, a broth was formed from organic molecules, called tholins. They consist of compounds of hydrogen and carbon, that is, hydrocarbons, as well as nitriles and amines.

Researchers at Cornell University identified nitriles and amines as potential candidates for the formation of Titanian cell membranes. Both groups of molecules are polar, which allows them to combine, thereby forming a membrane in non-polar liquid methane due to the polarity of the nitrogen groups that make up these molecules. They concluded that suitable molecules would need to be much smaller than phospholipids so that they could form mobile membranes at temperatures where methane exists in the liquid phase. They looked at nitriles and amines containing chains of 3 to 6 carbon atoms. Groups containing nitrogen are called azo groups, so the team gave the Titanian liposome analogue the name "azotosome."
Synthesizing azotosomes for experimental purposes is expensive and difficult, since experiments must be carried out at cryogenic temperatures of liquid methane. However, since the proposed molecules had already been well studied in other studies, the Cornell team felt it was justified to turn to computational chemistry to determine whether the proposed molecules could form a mobile membrane in liquid methane. Computer models have already been successfully used to study the familiar cell membranes made of phospholipids.

It has been found that acrylonitrile can become possible basis for the formation of cell membranes in liquid methane on Titan. It is known to be present in Titan's atmosphere at a concentration of 10 ppm, plus it was synthesized in the laboratory while simulating the effects of energy sources on Titan's nitrogen-methane atmosphere. Because this small polar molecule is able to dissolve in liquid methane, it is a candidate compound that could form cell membranes under the alternative biochemistry conditions on Titan. Blue – carbon atoms, blue – nitrogen atoms, white – hydrogen atoms.

Polar acrylonitrile molecules line up in chains, head to tail, forming membranes in non-polar liquid methane. Blue – carbon atoms, blue – nitrogen atoms, white – hydrogen atoms.

Computer modeling carried out by our research team showed that some substances could be excluded because they would not form a membrane, would be too rigid or would form solids. However, modeling has shown that some substances can form membranes with suitable properties. One of these substances was acrylonitrile, the presence of which in the atmosphere of Titan in a concentration of 10 ppm was discovered by Cassini. Despite the enormous temperature difference between cryogenic azotosomes and liposomes existing at room temperature, simulations demonstrated that they have remarkably similar properties of stability and response to mechanical stress. Thus, cell membranes suitable for living organisms can exist in liquid methane.

Computational chemistry modeling shows that acrylonitrile and several other small polar organic molecules containing nitrogen atoms can form "nitrosomes" in liquid methane. Azotosomes are small, sphere-shaped membranes resembling liposomes formed from phospholipids dissolved in water. Computer modeling shows that acrylonitrile-based azotosomes would be both stable and flexible at cryogenic temperatures in liquid methane, giving them the necessary properties to function as cell membranes for hypothetical Titanian living organisms or any other organisms on a planet with liquid methane on the surface . The azotosome in the image is 9 nanometers in size, which is roughly the size of a virus. Blue – carbon atoms, blue – nitrogen atoms, white – hydrogen atoms.

Scientists at Cornell University see the findings as a first step toward demonstrating that life in liquid methane is possible, and toward developing methods for future space probes to detect such life on Titan. If life in liquid nitrogen is possible, then the conclusions that follow from this go far beyond the boundaries of Titan.

When searching for habitable conditions in our galaxy, astronomers typically look for exoplanets whose orbits fall within the star's habitable zone, which is defined by a narrow range of distances within which the temperature on the surface of an Earth-like planet will allow liquid water to exist. If life in liquid methane is possible, then the stars must also have a methane habitable zone - an area where methane on the surface of a planet or its satellite can be in the liquid phase, creating conditions for the existence of life. Thus, the number of habitable planets in our galaxy will increase sharply. Perhaps on some planets, methane life has evolved into complex forms that we can hardly imagine. Who knows, maybe some of them even look like sea monsters.