Where does the Brazilian wandering spider Phoneutria live? Death in Furry Paws: Brazilian Soldier Spider Banana Wandering Spider

Brazilian wandering spiders are the most venomous spiders on the planet. They belong to the genus Phoneutria, which consists of several species of spiders. Several of these species, including Phoneutria nigriventer, Phoneutria keyserlingi and Phoneutria fera are called Brazilian wandering spiders.

The term "Brazilian wandering spider" actually refers not only to one spider, but to a number of extremely poisonous species spiders found mainly in South (especially Brazil, Colombia, Ecuador, Suriname, Peru and Guyana) and Central America. They belong to the genus Phoneutria, which is a member of the venomous spider family Ctenidae.

The Brazilian wandering spider is a very poisonous and aggressive spider. It is also known as the "banana" spider (because these spiders are often found in bunches of bananas). The Brazilian wandering spider "wanders" on the ground in the jungle, rather than living in a burrow or building a web.

Species of Brazilian wandering spiders

According to the Integrated Taxonomic Information System (ITIS), the genus of venomous spiders Ctenidae contains the following types Brazilian wandering spiders: Phoneutria fera, Phoneutria nigriventer, Phoneutria bahiensis, Phoneutria boliviensis, Phoneutria eickstedtae, Phoneutria keyserlingi, Phoneutria pertyi and Phoneutria reidyi.

All types of Brazilian wandering spiders mainly brown, hairy and have black spot on the stomach. These spiders reach large sizes, with a leg span of about 15 cm and a body size of up to 5 cm.

These spiders are nocturnal hunters, so they spend most of the day hiding in crevices or under logs and come out at night to hunt. They feed on insects, small reptiles, amphibians, mice and other smaller spiders.

Brazilian wandering spider - bite and its consequences.

A Brazilian wandering spider bite can cause full-blown poisoning or be limited to a few painful punctures in the skin. The two most famous and dangerous species of wandering spiders are Phoneutria fera and Phoneutria nigriventer.

Brazilian wandering spiders are known for their aggressiveness, as well as their highly venomous bite. However, it is interesting that this behavior is actually a defense mechanism.

When threatened or attacked, they raise their first two pairs of legs, signaling to their predators that they are ready to attack. Their biting is thus an act of self-defense, and they only do so when provoked, either accidentally or intentionally.

If you find yourself in a situation where you are bitten by one of these spiders, you may experience symptoms such as sweating, goosebumps, and severe burning pain at the site of the bite.

Within 30 minutes or so, an irregular heartbeat (arrhythmia) occurs, blood pressure increases, abdominal cramps occur, body temperature drops below normal, nausea, dizziness, blurred vision and seizures begin.

If you are bitten by a wandering spider, you should seek medical attention immediately. medical care to the appropriate facility, regardless of whether there are initial symptoms. This is very important as the poison can threaten your life.

The venom of these spiders is a complex cocktail of toxins, peptides and proteins that affects ion channels and chemical receptors in the neuromuscular system of the victims.

It so happened that the poison that brazilian spider Phoneutria nigriventer injects into its prey and contains several toxic polypeptide fractions. Some of them have been purified and shown to contain the very potent neurotoxin PhTx-3 and six neurotoxic peptides (Tx3-1-Tx3-6).

The experiment showed that PhTx3 and one of the named peptides, TX3-3, act as calcium channel blockers, reducing its amount. A decrease in the amount of calcium affects the entry of glutamate3 and acetylcholine2 into the rat brain.

Speaking in simple words, the venom of Brazilian wandering spiders affects brain function and disorients the victim.

Phoneutria is very interesting spiders, but to keep them in captivity, it is necessary great experience in keeping very fast and aggressive spiders. If not, then it is better to stay away from this species because of their dangerous poison. They are easy to keep and unpretentious in food, but require reasonable and respectful treatment.

The Brazilian wandering spider has been recognized as the most venomous spider in the world by the Guinness Book of Records. He received his nickname due to his eternal wandering and refusal to weave webs in favor of endless searches food.

A wandering poisonous spider never lives in one place, but always wanders. What is unpleasant for a person is that sometimes he enters houses. IN South America These spiders are often found in clothes or in boxes with clothes and food.

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

The Brazilian poisonous wandering spider loves to feast on bananas and will not miss the opportunity to climb into a box with this fruit. For its addiction, this spider received another name - the banana spider. But the main food for him is still not fruits. It hunts mainly 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 poisonous predator - only about 10 cm. But his small size does not prevent him from being an excellent hunter and a serious problem for people, and all because he is capable of releasing a significant dose when biting toxic poison, which is formed at the ends of the chelicerae, in the channels of the poisonous glands.

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

Fortunately for the residents of Russia, wandering spiders do not live here and are unlikely to ever appear: the climate is not entirely 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 poisonous spider does not attack a person. It bites only in self-defense. But the problem is that these spiders like to hide and are very difficult to notice. If you find a wandering poisonous spider, try to quickly take it out of the house and look through all the boxes and cabinets to see if there is another one in them. If possible, you need to be as careful as possible and under no circumstances pick it up.

It is considered one of the most dangerous and poisonous spiders in the world. However, a group of Brazilian scientists found that the venom of this paucana is effective in treating erectile dysfunction. Scientists who discovered these properties deadly poison, conducted experiments on rats, and the test results were published in a journal called Sexual Medicine. The report provides information that the PnTx2-6 spider toxin injected into an experimental animal caused a long-lasting erection within twenty minutes due to the release of nitric oxide in the animal's body, which is a substance that dilates blood vessels and improves blood flow.

  • Habitat: tropical and subtropical regions of South America.
  • Type: terrestrial, also lives in trees.
  • Food: young spiders eat fruit flies and small crickets. Adults eat crickets and other large insects, as well as small lizards and mice.
  • Size: 10-12.5 cm.
  • Growth rate: fast.
  • Temperature: 23.8-26.6′C.
  • Humidity: about 80%.
  • Personality: active and excited.
  • Housing: Young spiders can live in a clear plastic container with holes for fresh air. Adults require a terrarium with a volume of 17-35 liters. The bottom area of ​​the terrarium is more important than the height.
  • Substrate: 5-8 cm of sphagnum or potting soil.
  • Decoration: live plants, tree bark, driftwood, etc., anything that creates good hiding places.

One of the most dangerous spiders on our planet Brazilian wandering spider, or as people called him “banana” for his love for these fruits, and for the fact that he lives on banana palms. This type very aggressive for humans. The animal's venom is extremely strong, because it contains large doses of the neurotoxin PhTx3.

In small quantities, this substance is used in medicine, but in large concentrations of this substance it causes loss of muscle control and cardiac arrest. So it’s better not to meet this species, and when you see it, don’t touch it nearby and hurry away.

Origin of the species and description

Phoneutria fera or the Brazilian wandering spider belongs to the genus Ctenidae (runners). This species was discovered by the famous Bavarian naturalist Maximilian Perti. He devoted many years to studying these spiders. The name of this species is taken from the ancient Greek φονεύτρια; this term means “killer”. This type of spider received its name for its deadly danger.

Video: Brazilian wandering spider

Maximilian Perty combined several species P. rufibarbis and P. fera into one genus. The first species is slightly different from the typical representatives of this genus, and is its dubious representative.

This genus includes several species:

  • Phoneutria bahiensis Simó Brescovit, was discovered in 2001. Lives in and mainly in parks;
  • Phoneutria eickstedtae Martins Bertani discovered in 2007, the habitat of this species is also the warm forests of Brazil;
  • Phoneutria nigriventer was discovered back in 1987 and lives in Brazil and Northern; Phoneutria reidyi lives in warm forests and parks;
  • Phoneutria pertyi was discovered in the same year and lives in tropical forests Brazil;
  • Phoneutria boliviensis habitat Central and South America;
  • P.fera lives mainly in the Amazon, and in the forests of Peru;
  • P. keyserling is found in southern Brazil.

Like all spiders, it belongs to the type of arthropod arachnids. Family: Ctenidae Genus: Phoneutria.

Appearance and features

The Brazilian wandering spider is a fairly large arthropod. The length of an adult reaches 16 centimeters. Moreover, the body of the arthropod is about 7 centimeters. The distance from the beginning of the front legs to the end of the hind legs is approximately 17 cm. The color of this type of spider is slightly different, but in most cases it is dark brown. Although there are also spiders of yellowish and red shades. The entire body of the spider is covered with small, dense hairs

The spider's body is divided into a cephalothorax and an abdomen, which is connected by a bridge. It has 8 strong and long legs, which are not only a means of transportation, but also act as instruments of smell and touch. The legs often have black stripes and spots. The legs of this type of spider are quite massive, even somewhat similar to claws. There are as many as 8 eyes on the spider’s head; they provide the spider with a wide view.

Interesting fact: banana spider Although he has so many eyes and can see in all directions, he does not see very well. He reacts more to movement and objects, distinguishes the silhouettes of objects, but does not see them.

Also, when examining the spider, you can notice pronounced chewing, which is especially visible during an attack. When attacked, the spider demonstrates the lower part of its body, on which bright spots are visible, to scare away enemies.

Where does the Brazilian wandering spider live?

The main habitat of this species is America. Moreover, most often these arthropods are found in the tropical forests of Central and South America. Representatives of this species can also be found in Brazil and northern Argentina, Venezuela, Peru and Havana.

Spiders are thermophilic; the jungle is considered the main habitat of these arthropods. There they are placed on the crowns of trees. Spiders do not build shelters or burrows for themselves; they constantly move from one habitat to another in search of food.

In Brazil, spiders of this species live everywhere, perhaps only in the northern part of the country. Both in Brazil and in America, spiders can crawl into houses, which terribly scare the local population.

They love it warm and humid tropical climate. Spiders of this species do not live due to the climate. However, they can be found accidentally brought from warm countries in boxes with tropical fruits, or by lovers of spiders for breeding them in a terrarium.

IN recent years This dangerous animal is increasingly being kept at home as pets. At home, they can live all over the world, but keeping them is not recommended due to the extreme danger of this species. Spiders also don’t live well in captivity, so you need to think carefully before getting such a pet.

Now you know Where does the Brazilian wandering spider live?. Let's see what he eats.

What does the Brazilian wandering spider eat?

The diet of this type of spider includes:

  • various small insects and their larvae;
  • snails;
  • crickets;
  • small;
  • small caterpillars;
  • various fruits and tree fruits.

Also, the spider is not averse to feasting on small birds and their young, small ones such as rats, hamsters. Wandering Spider dangerous predator. He lies in wait for his victim in a shelter, and does everything so that the victim cannot notice him. When it sees the victim, the spider rises on its hind legs. The forelimbs are raised and the middle limbs are placed to the side. This is how the spider looks the most intimidating. From this position it attacks its prey.

Interesting fact: During a hunt, a wandering spider injects poison and its own saliva into its prey. The effect of the poison completely paralyzes the victim. The poison blocks muscle function, stops breathing and the heart. The spider's saliva turns the victim's insides into a slurry, which is then drunk by the spider.

For small animals and rodents, death occurs instantly. Snakes and larger animals suffer for about 10-15 minutes. The victim will no longer be able to escape after a spider bite; death in this case is already inevitable. The banana spider goes hunting at night, and during the day it hides from the sun under leaves on trees, in crevices and under stones. Hides in dark caves.

It can wrap its killed victim in a cocoon of cobwebs, leaving it for later. While hunting, spiders can hide in the leaves of trees in order to be invisible to the prey.

Features of character and lifestyle

Brazilian wandering spiders lead a solitary lifestyle. These spiders have a relatively calm disposition; they attack first only during a hunt. Spiders do not attack large animals and people if they feel safe. Phoneutria do not build houses, do not create shelters and shelters. They constantly move from one place to another. They hunt at night and rest during the day.

Banana spiders are aggressive towards their relatives. Cases of cannibalism occur frequently. Small spiders are eaten by older individuals; the female is able to eat the male after mating with him. Like all predators, they can attack any enemy. Moreover, most often he can defeat even a large victim thanks to his deadly poison.

Spiders of this species are very aggressive. They jealously guard their territory; males can even fight each other for territory and females. In captivity, spiders of this species feel unwell, experience severe stress, and live less than their relatives who live in the wild.

Brazilian wandering spiders run quickly, climb trees, and are constantly on the move. The main occupation of these spiders is to weave webs. And unlike ordinary spiders, this species uses the web not as a trap, but in order to wrap already caught prey in it and lay eggs at the time of mating.

The web is also used for fast movement through the trees. This type of spider attacks people only for the purpose of self-defense. But a spider bite is fatal, so if you find a spider, do not touch it and try to take it away from your home.

Social structure and reproduction

As mentioned earlier, Brazilian spiders live alone and meet with a female only for reproduction. The male offers food to the female, appeasing her with it. By the way, this is also necessary so that he is alive and the female does not eat him. If the female has eaten enough, she may not want to feast on the male, and this will save his life.

When the fertilization process ends, the male quickly leaves so that the female does not eat him. Some time after fertilization, the female spider weaves a special cocoon from the web in which she lays eggs; sometimes eggs are also laid on bananas and leaves. But this happens rarely; most often, the female, in caring for the offspring, hides the eggs in the web.

After about 20-25 days, these eggs hatch into baby spiders. After birth they spread into different sides. Spiders of this species reproduce very quickly, as several hundred spiders are born in one litter. Adult spiders live for three years, and during their lifetime they can produce quite a large offspring. Neither the mother nor the father takes any part in raising the offspring.

The cubs grow up on their own, feeding on small larvae, worms and caterpillars. Spiderlings can hunt immediately after hatching from the egg. During their growth, spiders undergo molting and loss of exoskeleton several times. During the year, the spider molts from 6 to 10 times. Older individuals shed less. The composition of spider venom also changes as the arthropod grows. In small spiders, the poison is not so dangerous; over time, its composition undergoes changes, and the poison becomes deadly.

Natural enemies of Brazilian wandering spiders

Spiders of this species have few natural enemies, but they still exist. Called the Tarantula Hawk, it is one of the largest wasps on our planet. This is a very dangerous and scary insect.

Female wasps of this species are capable of stinging a Brazilian spider; the venom completely paralyzes the arthropod. After this, the wasp drags the spider into its hole. The most amazing thing is that the wasp needs the spider not for food, but to care for its offspring. The female wasp lays an egg in the belly of the paralyzed spider, after some time the baby hatches from it and eats the belly of the spider. The spider dies terrible death from being eaten from the inside.

Interesting fact: Some species of this genus use a so-called “dry bite,” in which no poison is injected, and such a bite is relatively safe.

Birds and other animals in natural environment they are avoided, knowing how dangerous these spiders are. Due to their poisonous nature, Brazilian spiders have very few enemies. However, spiders of this kind do not attack on their own; before the fight, they warn their enemy about the attack with their stance, and if the enemy retreats, the spider will not attack him if he feels safe and decides that nothing threatens him.

Spiders often suffer death from other animals during fights with large animals, or during fights with their relatives. Many males die during mating because they are eaten by females.

People are just as dangerous to spiders; they are often hunted for their poison. After all, poison in small quantities is used as a means to restore potency in men. In addition, people are cutting down the forests in which spiders live, so the population of one of the species of this genus is under threat of extinction.

Population and species status

The Brazilian wandering spider is listed in the Guinness Book of Records as the largest spider on planet earth. This type of spider is very dangerous for humans, and sometimes spiders enter people’s homes. Insects can often enter the house in boxes of fruit or simply crawl in hiding from the midday heat. When bitten, these spiders inject dangerous substance neurotoxin PhTx3. It blocks muscle function. Breathing slows and stops, and cardiac activity is blocked. The person quickly becomes ill.

After a bite, the dangerous poison very quickly penetrates the blood and lymph nodes. The blood carries it throughout the body. The person begins to choke, dizziness and vomiting appear. Cramps. Death occurs within a few hours. Bites from Brazilian wandering spiders are especially dangerous for children and people with low immunity. If you are bitten by a Brazilian wandering spider, you must immediately administer an antidote, although it does not always help.

The population of this genus of spiders is not threatened. They reproduce quickly and survive changes well external environment. As for other species of this genus, they live quietly and reproduce, flooding the forests and jungles of Brazil, America and Peru. Phoneutria fera and Phoneutria nigriventer are the two most dangerous species. Their poison is the most toxic. After their bites, painful conditions are observed in their victims due to the high content of serotonin. The bite provokes hallucinations, shortness of breath, and delirium.

Interesting fact: The venom of this type of spider can kill a child in just 10 minutes. An adult, depending on his state of health, can last from 20 minutes to several hours. Symptoms appear instantly and develop rapidly. Death occurs quickly as a result of suffocation.

Therefore, when visiting tropical countries, be extremely vigilant; when you see this arthropod, under no circumstances approach it or touch it with your hands. Brazilian spiders do not attack humans, but upon noticing danger and saving, they can bite their own lives. In America, there are many cases of people being bitten by Brazilian spiders, and unfortunately in 60% of cases the bites were fatal. Modern medicine has an effective antidote, but unfortunately, the doctor is not always able to get to the patient in time. Young children are especially susceptible to bites from these arthropods, and they are the most dangerous for them. Often children cannot be saved after being bitten by a wandering spider.

Brazilian wandering spider dangerous but calm animal. Reproduces quickly, lives approximately three years and during its life is capable of producing several hundred cubs. When living in their natural habitat, they obtain their food by hunting. Young spiders are not very dangerous, but adults, thanks to their poison, are deadly to humans. The danger of the poison depends on its quantity. In recent years, more and more people are keeping these dangerous spiders at home in terrariums, thereby endangering themselves and their loved ones. These spiders are dangerous, remember this and better avoid them.

Brazilian wandering spider - also known as soldier, runner, wandering spider, . Belongs to the runner family Ctenidae. Reads 8 types. Natural habitat covers South and Central America. As pet found throughout the world. In 2010, it was included in the Guinness Book of Records as the most poisonous.

Description of appearance

The Brazilian wandering spider grows to a size of 15 cm, which is equal to the size of an adult's hand. Ranked with. The color is varied - gray, brown, black, red, brown. The body is divided into the abdomen and cephalothorax, connected by a thin bridge. Long powerful 8 pieces. Well visible mandibles. The photo is located below.

The entire body is covered with small, dense hairs. Legs serve as instruments of movement and are organs of smell and touch. On the head, providing a broad outlook.

Note!

The wandering spider sees in different directions, But good eyesight no different. Perceives silhouettes, shadows, and responds well to movement.

Lifestyle

The Brazilian runner spider got its name because of its vital functions and certain qualities. The animal moves quickly and jumps well. Lives in trees, most of them bananas. The bur does not stand; it constantly moves from one place to another in search of food.

Note!

The Brazilian spider forms powerful trapping webs. The diameter of the largest reaches 2 m. The threads are so strong that they freely hold birds, lizards, snakes, and small rodents. Fishermen put them in several layers and use them to catch fish.

The Brazilian wandering spider often crawls into residential buildings in search of food. Hides in cabinets with dishes, things, shoes, in the corners of rooms. Since in such conditions it does not spin a web, it does not reveal its presence in any way.

Nutrition

The main diet is insects, snails, small caterpillars. Often the victims are small birds, rodents, lizards, and snakes. The soldier spider lies in wait for its victim in a shelter. When she sees her, she takes a characteristic pose - she rises on her hind limbs, lifts her front limbs up, pulls her middle ones forward, and spreads them to the side. He waits for the right moment and rushes to attack.

Interesting!

The runner spider injects venom and saliva. The first substance paralyzes the victim, the second turns the insides into a liquid mass, which the predator then drinks. Insects die almost immediately, frogs, rodents, snakes after 15 minutes. The Brazilian soldier spider hunts at night and hides away from sunlight under stones, in crevices, tree leaves.

Reproduction

Runners lead a solitary lifestyle and gather in pairs at the time of mating. The male appeases the female with food. Such manipulation is necessary so that the spider does not simply eat it. After fertilization, the “suitor” must immediately hide, since the hungry female may begin her hunt.

After some time, the wandering spider lays eggs in a cocoon formed from a web or on bananas. The cubs are born after 20 days and scatter in different directions. Up to a hundred small spiders are born at one time. An adult lives on average 3 years.


Danger to humans

The British wandering spider is one of its huge family. Toxic substance disrupts work nervous system, causes spasms. Possible consequences bite:

  • abdominal pain;
  • nausea;
  • weakness;
  • vomit;
  • diarrhea;
  • dizziness;
  • temperature change;
  • arrhythmia;
  • headache;
  • increased blood pressure;
  • difficulty breathing, shortness of breath.

Redness, swelling, pain, and burning appear at the site.

The situation is especially dangerous for young children, people with weakened immune systems, the elderly, and people with allergies. The venom of the Brazilian wandering spider can kill a child in 15 minutes and an adult in half an hour. Alarming symptoms develop within 20 minutes after a predator attack. However, with the provision of qualified assistance, the condition returns to normal. Call ambulance should be taken immediately if breathing difficulties occur.

Poison in high concentration leads to muscle failure, heart function is disrupted, and breathing becomes difficult. Death occurs as a result of suffocation. There is an effective antidote - Phoneutria. When it is administered, nothing threatens a person’s life.

Benefits of the Brazilian wandering spider

The animal is kept as a pet all over the world. Attracts an unusual appearance, large size. In artificially created conditions, the runner lives up to 3 years, reproduces, and feeds on insects.

The poison contains a powerful neurotoxin PhTx3, which is used in medicine in strictly dosed concentrations. The substance has a beneficial effect on male potency. Effective medicines are made from the poison.

Brazilian wandering spider

The Brazilian wandering spider is the largest spider in the world. At just 13cm across, it's very small, but don't be fooled by that. According to some researchers, this is the most deadly spider on the planet, he is also very aggressive and territorial. It is sometimes also called the Banana Spider because many of these spiders have been found in bunches of fruit. This is a critter that definitely needs to be avoided.The Brazilian wandering spider is actually common name eight species of spiders that belong to the genus Phoneutria - translated from Greek means killer. It runs everywhere at night, actively searching for prey. It does not wait in ambush and does not spin webs like other spiders. The idea that in wet forests there may be giant webs accumulated over the years is a misconception.

Many spiders don't bother with webs at all, preferring to always be on the move to catch food. This species can be recognized by the scarlet-red fur that covers their paws. A good indicator is also a defensive posture when the spider stands on its hind legs, raises its front legs and sways from side to side. This spider is not afraid of people and will actively attack anyone if it feels threatened, making it very dangerous to approach.

Two of the eight species of Brazilian wandering spiders are responsible for the majority of bites and are found in densely populated areas of southeastern Brazil and the Amazon. Most bites occur because the spider wanders around at night and then hides during the day in something accessible, this could be leaves, plants or logs in the forest, or shoes, clothing and boxes in people's homes. However, recent studies have shown that these spiders do not inject venom in 30% of their bites, and only small quantity they inject poison into the other 30%. This means that the same bites still sometimes occur. Bites may differ in consequences from simple punctures of the skin, i.e. a simple nuisance to complete poisoning. Australian spider, which is related species, spins funnel webs by injecting venom each time, and may therefore be considered more dangerous, although the venom of any spider can result in a medical emergency.

In 2007, the Brazilian wandering spider was included in the Guinness Book of Records as the most poisonous spider and responsible for the most human deaths due to a spider bite. It is believed that this species includes spiders that have the most powerful neurotoxic venom of any other spider. Just 0.006mg (0.00000021oz) of poison is enough to kill a mouse, not much more is needed to kill a person.

It's big brown spider By appearance similar to the North American wolf spider. Its bite is the most painful due to its large fangs and high level serotonin contained in the poison. This is one of the most excruciatingly painful bites of any spider. This poison has also been found to increase nitric oxide levels. The effect on the male victim will be the same as swallowing Viagra - a prolonged and painful erection when it is least needed.

While the venom can certainly be deadly, no human deaths have been reported since the invention of the antidote in 2004. And yet, meetings with anyone large spider, the danger of which is as obvious as the danger of the Brazilian wandering spider, is worth fearing.

Still, people sometimes encounter similar types of spiders when unpacking fruit that has been shipped from abroad, but you are unlikely to ever encounter such spiders unless you are hanging around in South America. However, it is worth knowing what danger spiders can pose if an attack does occur. They are officially the most dangerous spiders on Earth. Be careful.