In 2007, another poisonous record holder appeared in the Guinness Book of Records - the Brazilian wandering spider. As is already clear from its name, the habitat of this aggressive and rather dangerous arachnid for humans is South America. But often this agile arthropod can also be found in human habitation, where boxes, boots, hats, etc. turn out to be its favorite places.

Brazilian wandering spider: appearance

These spiders are quite large - about 10 cm long. They have a spindle-shaped body and eight eyes, two of which are large. A voluminous abdomen and long, thick legs ending in spikes, covered with thick hairs, distinguish this arachnid from its fellows. Its color can vary from dark brown to brown.

Becoming in a protective pose, the Brazilian wandering spider, whose photo you can see in this article, rests on its hind legs and, raising two pairs of front legs, sways menacingly from side to side. One of the main signs of this spider is large chelicerae covered with red bristles.

Brazilian wandering spider: lifestyle

Wandering spiders are so named because they do not build nests or weave webs, but roam in search of food: insects, other spiders, or even frogs, small birds and mammals. Bananas occupy a special place in the diet of the spider, for which in the homeland of the arthropod gourmet they are also called the “banana” spider.

These arachnids move quite quickly, developing especially high speed in pursuit of prey. And some species are also able to jump far. The wandering spider sticks chelicerae into its prey, through which poison is carried. It paralyzes small animals in just a few seconds.

Wandering spiders are nocturnal creatures that prefer to roost during the day under rocks, in thick grass, or in people's homes.

Brazilian wandering spider: a danger to humans

The cause of particular concern when a person encounters a Brazilian wandering spider is that this poisonous arthropod is in no hurry to escape, but, on the contrary, takes a defensive position and, having bitten once, seeks to do it again and again.

The venom of these spiders causes a severe allergic reaction in humans. And if the victim is a child, an elderly or weakened person, then the bite of the "Brazilian" can be extremely dangerous, even fatal. True, in medicine there are means that can help with the bite of a poisonous arthropod, but it is necessary to seek help no later than 20 minutes after the incident.

The first symptoms of spider venom poisoning are quite severe pain from the bite itself, and then a strong increase in pressure, nausea, dizziness and difficulty in breathing.

But we must remember that this spider does not attack a person first. The bite in this case can only be for the purpose of self-defense. True, due to strong love of this species, living in boxes and dark rooms, the inhabitants of South America have to be especially careful and attentive.

And again today we turn to our beloved Guinness Book of Records. We open the section about insects and find "The most poisonous spiders in the world." The palm among them is shared by the Black Widow and the Brazilian wandering spider. Let's talk about the last one.


He owes his leading position aggressive behavior and powerful neurotoxins contained in its venom. In a healthy person, the bite of a Brazilian spider causes a severe allergic reaction, but with a timely visit to a doctor dire consequences can be avoided. But for children and people with weakened immune systems, its poison is deadly. The bite is accompanied by sharp pain and causes symptoms of intoxication and paralysis of the respiratory muscles. The man is just suffocating. Death can occur within 2-6 hours.



Here is one sad example. It happened in an ordinary Brazilian family with small children. Curious brother and sister climbed into the attic, and there, among the boxes, a Brazilian wandering spider found temporary shelter. The children found an unusual "animal" and decided to play. Then the spider, without hesitation, grabbed the 3-year-old girl's hand. When the brother tried to throw him away, the spider bit the boy. He was saved, but the girl did not live to see the arrival of doctors.



Maybe everything would have worked out if the children had not bothered the spider. He doesn't attack people first. Only in cases of self-defense. But the problem lies in the fact that brazilian spider loves to live in people's houses, in particular in closets and boxes with things. So people need to be extremely careful.


And now let's talk about where the spider got its name from - Brazilian wandering. With the first word, everything is clear - according to the place of residence. Wandering was attributed to him because he never sits still. In addition, he does not weave webs, like all eight-legged relatives.

An interesting fact is that the Brazilian wandering spider loves to eat bananas. For which he received another name - a banana spider. But still, its main menu is made up of smaller relatives, insects, lizards and even birds!

But, despite its terrible reputation, this spider can benefit humanity, in particular its strong half. The fact is that its poison contains the toxin Tx2-6, which contributes to the appearance of a prolonged and painful erection. In addition, some victims of the spider claimed that after being bitten by a spider, the quality of their sex life improved significantly. Animal experience has confirmed scientists' suggestion that the use of this toxin in medicine can help treat impotence. Well, at least some benefit from this spider.

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The most poisonous spider in the world, according to the Guinness Book of Records, is considered " brazilian wandering pau To". This spider got its name because it does not sit in one place and does not weave cobwebs, but actively moves in search of food. Another extremely dangerous spider is considered Black Widow- which can be found in the Caucasus and in the Crimea.

Brazilian wandering spider ( Phoneutria) - fast, very active and most importantly - poisonous. Brazilian name of the animal: aranha armadeira, aranha de bananeira (aranha armadeira, aranha de bananeira) - armed spider or banana spider.

This spider deservedly received its telling name: it does not weave webs, like most spiders, because it does not need it. The wandering spider never lives in one place, but always roams. It is unpleasant for a person that sometimes he enters houses. In South America, these spiders are often found in clothes or in boxes with things and food.

A wandering spider is found only in America, and even then most often in tropical and subtropical regions. There are two types of Brazilian wandering spiders - these are jumping spiders, which pursue their prey with jerky jumps, and running spiders. The latter run very fast, but lead a nocturnal lifestyle, and during the day they sit under stones or hide in some other place, including in people's houses.

The Brazilian wandering spider loves to feast on bananas, and will not miss the opportunity to climb into a box with this fruit. For his predilection, this spider received another name - a banana spider. But the main food for him is still not fruits. It hunts mainly on other spiders and insects, and it also happens that it attacks birds and lizards that are larger than it.

He himself is a rather small predator - only some 10 cm. But his small size does not prevent him from being an excellent hunter and a serious problem for people, and all from the fact that he is able to release a solid dose of toxic poison when biting, which is formed at the ends of the chelicera, in the channels of the poisonous glands.

Maybe poison wandering spider less dangerous than snake venom. He is unlikely to be able to kill an adult healthy person - he will only cause a serious allergic reaction, with which modern medicine able to handle quickly. But if a Brazilian wandering spider bites a sick person or a small child, then the poison can work faster than it arrives. ambulance. Some specimens of this spider are so dangerous that the death of a person can occur within 20-30 minutes if immediate help is not provided.

Fortunately for the people of Russia, wandering spiders they do not live here and are unlikely to ever appear: the climate is not quite suitable. But you still need to remember to be careful when handling these arthropods, in case you still have to meet them.

By itself, a wandering spider does not attack a person. It bites only in self-defense. But the problem is that these spiders love to hide and are very hard to spot. If you find a wandering spider, try to get it out of the house as soon as possible and look through all the boxes and cabinets to see if there is another one in them. If possible, you must be as careful as possible and in no case take the spider in your hands.

Karaku?rt(from the Turkic "kara" - black and "kurt" - a worm, an insect; lat. Latrodectus tredecimguttatus) or a steppe spider - a species of poisonous spiders from the genus of black widows.

Karakurt- spider medium size(female 10-20 mm, male 4-7 mm), black with red dots on the abdomen. Widespread in desert and steppe zone Central Asia, in the Caucasus, in the Crimea, as well as in Iran, Afghanistan and along the banks mediterranean sea. Favorite habitats are virgin sagebrush, wastelands, banks of ditches, slopes of ravines, etc.

For humans and farm animals, only female spiders are dangerous. The bites of the female can be fatal to humans and animals such as camels and horses. The male, having a much smaller size, does not pose a danger to humans, since it cannot bite through the rather thick human skin. It does not pose a danger to animals to the same extent as the female. Mature females are the most poisonous. Karakurt poison not only 15 times stronger than poison one of the most scary snakes - rattlesnake, but in general is one of the most toxic substances that have organic origin, on the ground.

The frequency of bites in some years increases sharply due to the mass reproduction of karakurt. The number of victims increases during periods of migration of female spiders - in the summer months.

Poison karakurt neurotoxic, causes an exceptionally intense release of acetylcholine in the neuromuscular synapses, as well as acetylcholine, norepinephrine, dopamine and alpha-aminobutyrate in the synapses of the central nervous system, as well as intense in the sympathetic-adrenal system.

The most common cause of a bite is the crushing of a spider that accidentally crawled into the clothes or bed of the victim. In most cases, people who are sleeping or resting in shady places are bitten. Lesions predominate in countryside and in field conditions. In cities, karakurt bites are extremely rare.

Karakurt often attacks a person unexpectedly. Especially active in summer at night. The bite is not painful and is often not felt by the victim. There is no local reaction to the poison or it is very weakly expressed - around the bite site there may be a zone of skin blanching (several centimeters in diameter), surrounded by a rim of mild hyperemia. In most cases, there are no local changes and it is extremely difficult to find the bite site. Sometimes a bite is perceived as a needle prick. Due to the low pain of the bite (unlike stings by scorpions, wasps), many victims, especially those bitten at night during sleep, do not associate their sudden illness with a bite poisonous insect seek medical help due to the general manifestation of intoxication.

General toxic phenomena develop rapidly, 5-30 minutes after the bite, and rapidly progress. The severity of poisoning varies from relatively mild, quickly transient forms to extremely severe, sometimes fatal cases. For pronounced forms, excruciating muscle pains are characteristic, combined with paresthesias in the limbs, lower back, abdomen and chest. Patients are excited, often covered with cold sweat, fear of death is expressed, the face is tense, hyperemic, sclera " poured"blood, facial expressions are poor, the facial expression is suffering. Often there is lacrimation. Soon after the bite, a sharp muscle weakness develops, especially of the lower extremities, as a result of which patients have difficulty moving or cannot stand at all. Excruciating pain syndrome (breaking, pulling and tearing pains of different localization) are combined with pronounced muscle tension.

The abdominal muscles are often very tense, which, together with dryness of the tongue, intestinal paresis (peristalsis is weakened, gases do not escape), pronounced leukocytosis and an increase in body temperature to 38 ° C and above, mimic the picture of an acute abdomen (there are cases of erroneous surgical intervention with karakurt bites). Nausea and vomiting may also occur. However, the correct diagnosis is easy to make when considering other symptoms. Tension and dysfunction of the muscles of the limbs, back, occipital (head thrown back, positive Kernig's syndrome), their tremor and convulsive twitches, dysfunction of the respiratory muscles (saccadic breathing), spasm of the sphincters - narrow pupils, urinary retention with overstretched bladder, increased blood pressure (toxogenic karakurt hypertension) - create a very characteristic picture of the disease and allow you to make the correct diagnosis.

In extremely severe cases excitation replaced by apathy, depression, confusion (sometimes with psychotic reactions), collapse and progressive shortness of breath with symptoms of pulmonary edema (crepitus and moist rales, foamy sputum).

Some sick a rosaceous rash appears on the skin. The acute phase of intoxication is especially characterized by the phenomenon of layering pains of different nature and localization on top of each other, combined with a feeling of fear, excitation, sharp muscle weakness and tension of various muscle groups, disturbances in peristalsis and urination, increased blood pressure and body temperature. In mild forms of poisoning, painful phenomena stop by the end of the first day, in moderate and severe forms, they can last 3-4 days.

Right after the bite but no later than two minutes later) you can cauterize the bitten place with a flammable match - from heating, the poison that has not had time to be absorbed is destroyed. This method is indispensable away from medical care. In other cases, urgent hospitalization is required. Otherwise, the bite can lead to the most disastrous results.

The Brazilian wandering spider is fast and very active. Everything would be fine, but it is also very poisonous. It is even ranked among the ten most dangerous spiders on Earth. This spider deservedly received its telling name: it does not weave webs, like most spiders, because it does not need it. The wandering spider never lives in one place, but always roams. It is unpleasant for a person that sometimes he enters houses. In South America, these spiders are often found in clothes or in boxes with things and food.

A wandering spider is found only in America, and even then most often in tropical and subtropical regions. There are two types of Brazilian wandering spiders - these are jumping spiders, which pursue their prey with jerky jumps, and running spiders. The latter run very fast, but lead a nocturnal lifestyle, and during the day they sit under stones or hide in some other place, including in people's houses.

The Brazilian wandering spider loves to feast on bananas, and will not miss the opportunity to climb into a box with this fruit. For his predilection, this spider received another name - a banana spider. But the main food for him is still not fruits. It hunts mainly on other spiders and insects, and it also happens that it attacks birds and lizards that are larger than it.

He himself is a rather small predator - only some 10 cm. But his small size does not prevent him from being an excellent hunter and a serious problem for people, but all because he is able to release a solid dose of toxic poison when biting, which is formed at the ends of chelicera, in canals of poisonous glands.

Perhaps the venom of a wandering spider is less dangerous than that of snakes. He is unlikely to be able to kill an adult healthy person - he will only cause a serious allergic reaction, which modern medicine is able to quickly cope with. But if a Brazilian wandering spider bites a sick person or a small child, then the poison can work faster than an ambulance arrives.

In 1998, one of these spiders bit a 23-year-old American who was sorting through a box of bananas. The spider was hiding in it. The spider, angry at being disturbed, bit the man on the hand. He immediately went to the hospital, where he was treated. Here is how an American describes his condition: “When the spider bit me, I felt a thorn penetrate very deeply into my hand. And my head immediately became like a balloon ... My chest was so squeezed that I could hardly breathe. My blood pressure skyrocketed, almost to the ceiling, and my heart was pounding so hard that I could physically feel it beating. chest. Honestly, I thought I was going to die." Doctors injected the victim with an antidote and thus saved his life. The patient was discharged the very next day.

But there are also tragic encounters with wandering spiders. In the home of a Brazilian family, a wandering spider hid in the attic. The younger children found it and wanted to play. The spider grabbed the hand youngest daughter. When the brother tried to throw him away, the spider bit the boy too. The parents immediately called an ambulance. Doctors arrived in half an hour, but by this time the three-year-old girl had died, they could not save her.

Fortunately for the inhabitants of Russia, wandering spiders do not live here and are unlikely to

Runner, banana, wanderer... it's not just a bunch of words. This is the name of one of the most dangerous spiders in the world, which can take the life of a person in less than an hour. The Brazilian Soldier Spider is one of the most common names for the deadly poisonous spider, which keeps in fear the inhabitants of Central and South America. Recognized by the Guinness Book of Records as the most dangerous and poisonous of the spider family.

What does death look like and how does it live

Once upon a time, the spider ranked first in the world in terms of danger, but now the Brazilian spider soldier is on the throne. This is a very active and aggressive animal, which, unlike its relatives, does not weave a web, does not live long in the same place, but loves to travel.

Depending on the habitat, its color also varies, but, as a rule, it is the color of sandy soil, which allows it to be perfectly camouflaged. The area next to the chelicerae is colored red, which helps to first attract and then intimidate the enemy. The size of the spider can reach 15 centimeters, along with its span. big feet.


During the day, it often sits under rocks and logs, waiting for the night to fall when it feels more comfortable. Wandering all day, the soldier spider sometimes wanders into people's dwellings, and can hide in their clothes scattered on the floor, in shoes, climb into boxes or something like that. This spider loves to hide in banana boxes, which is why it is often called the “banana” spider, sometimes it can even have a bite to eat bananas themselves.

If the spider has met an enemy, it raises its front legs, puts its body upright, exposing its red "zone" next to the chelicerae.

What does a predator eat

Sometimes, but very rarely, bananas, while living in banana boxes, more often various insects. But this spider has the glory of an aggressive predator also because it can easily pounce on some small or even if they are larger than it.


Spider - soldier and man

Like most animals, even the most dangerous and aggressive, the Brazilian soldier spider will not be the first to rush into battle, it attacks and bites only in case of danger to life.


As noted earlier, due to its inconspicuous appearance and great love to "play hide and seek" in people's houses and things, meetings with this spider are very frequent and sometimes end, alas, very sadly. According to various sources, the bite of a soldier spider is fatal in 85% of cases. Its poison is incredibly toxic, causing paralysis of all muscles, as a result of which a person dies from suffocation. There is an antidote that is no less toxic than the poison itself.


Despite all the negative points, scientists have found that the poison of the Brazilian soldier spider can positively affect sex life men. The toxin contained in the poison can cure impotence, and in this moment scientists are studying how to combine the toxin with existing drugs in order to effectively and safely treat male ailment.