Jellyfish are the oldest marine inhabitants, appearing hundreds of millions of years ago. These underwater inhabitants got their name due to their resemblance to mythical creature- Medusa Gorgon. The body of these animal representatives sea world more than 90% consists of water. Their favorite place habitats are salt waters. Translucent creatures are the object of research by scientists. The poisonous and largest jellyfish are of particular interest.
10. Irukandji jellyfish 10 centimeters
- one of the most poisonous Pacific jellyfish. The main habitat is Australian waters. The diameter of its dome is about 10 centimeters. Irukandji has four tentacles, the length of which can reach 1 meter. A jellyfish sting is dangerous to humans and can cause a number of unpleasant consequences: pain throughout the body, nausea, vomiting, tachycardia and even pulmonary edema. IN in rare cases death may occur. Irukaji's venom has a slow-acting property, so symptoms may appear over several days. Despite its small size, it poses a certain risk for swimmers.
9. Jellyfish Pelagia 12 centimeters
(Nocturnal jellyfish) is one of the most beautiful disc jellyfish, which is common in the waters of the World and Atlantic Oceans, as well as in the Red and Mediterranean Seas. The body diameter of the jellyfish reaches 12 centimeters. The color of the umbrella is purple-red and has ornate frills around the edges. In addition to stinging cells and tentacles, Pelagia has four oral cavities. The jellyfish begins to glow the moment it comes into contact with any objects. The main living creatures that the Nightlight feeds on are benthos, sometimes fry and crustaceans. The jellyfish poses a certain danger to humans, since its injected poison causes burns and, in some cases, shock.
8. Portuguese man of war 25 centimeters
(Physalia) - a jellyfish is a “sailboat”-shaped bubble floating on the surface of the water. The body of the “sailfish” is 25 centimeters, but the tentacles of Physalia can reach 50 meters, which it hides under water. It has a beautiful blue or purple color. The Portuguese man-of-war prefers to feed on fish larvae and small squid. Physalia is one of the most poisonous sea jellyfish. Upon contact with its tentacles, a person receives a severe burn, which is accompanied by acute pain. The injected poison can paralyze everything vitally important organs, so it is difficult for a stung swimmer to stay on the water, and the person drowns. The Portuguese man-of-war is easy to spot from afar, thanks to its bright and beautiful coloring, so you can avoid encountering it while sailing.
(Eared jellyfish) is one of the most common types of large jellyfish. Aurelia's body is almost transparent and reaches 40 centimeters. Numerous thin tentacles have stinging cells that strike prey. Four oral lobes resemble drooping ears, which is why Aurelia received the name Ushastaya. This species feeds mainly on plankton and crustaceans. The eared jellyfish does not pose a danger to humans, and its bite can only cause a burn. IN Asian countries Aurelia is used to prepare exotic dishes.
6. Australian Sea Wasp 45 centimeters
- the most poisonous inhabitant of the World Ocean. The main habitat of the species is the coasts of Indonesia and Australia. The dome of the Sea Wasp is 45 centimeters and is equipped with 60 tentacles, which can reach more than 3 meters when hunting prey. The sea animal has 24 eyes. It instantly stings a passing object in several places at once. Death from poisonous jellyfish stings can occur in just a few minutes. A stung swimmer receives a dose sufficient to heart attack, and often drowns. It is quite difficult to notice this jellyfish due to its transparency. Feeds Australian wasp small fish and shrimp.
5. Corner mouth 60 centimeters
- one of largest sea jellyfish, living in Black and Mediterranean seas. The weight of the sea dweller can reach 10 kg, and the diameter of the dome is 60 centimeters. For humans, Cornerot poses no danger and can only cause mild irritation upon contact with the tentacles. The cornerota umbrella is a “haven” for small fish that hide under the dome from danger. This species feeds only on plankton. Jellyfish are actively used in medicine for the preparation of medicines, as well as in cooking. In Japan, Thailand and China, a variety of dishes are prepared from Cornerot.
4. Purple striped jellyfish 70 centimeters
One of the largest and most graceful jellyfish, living in the Gulf of Monterey. The dome of the animal reaches 70 centimeters and has a rich color. A Purple Jellyfish sting can cause severe burns to a person. This type has not yet been thoroughly studied by science, so there is very little information about the animal.
(Sea nettle) - an inhabitant of the Pacific Ocean reveals the three largest jellyfish in the world. The body of an adult Chryasora can reach 1 meter, and its numerous tentacles can reach 4 meters. Tentacles severed from the body can exist separately in depths of the sea ah for weeks and sting. Sea nettle stings leave burns in the form of thin welts. Victims experience sharp pain and burning, but do not pose a danger to human health. Chryasora is one of the most beautiful representatives of its species, so the animal is often kept in oceanariums and aquariums. In the ocean, sea nettle feeds on plankton and small jellyfish.
(Lion's mane) - one of the largest species of jellyfish found in the seas Far East. Nomura measures 2 meters in size and can weigh up to 200 kg. Marine animals cause harm to the fishing industry. A giant hairy ball gets caught in the net, tangling it. When the fishermen try to free the net, Nomura sharply stings the man. In case of an allergic reaction to the poison, it is possible death from the bite of a Lion's mane. From time to time, large accumulations of Nomura are observed off the coast of the Sea of Japan.
1. Hairy Cyanea 2.3 meters
Ranks first among giant jellyfish peace. The body of individual individuals of Cyanea can reach 2.3 meters, and the length of the tentacles is 37 meters. The main habitat of this species is seas and oceans. These jellyfish rarely approach the shores and prefer to exist at depths of 20 meters. Giant Cyanea does not pose a serious danger to humans. Its bite can only cause a burn. Large individuals feed on plankton and other jellyfish.
Man, as a land creature, has always been a little afraid of the depths of the sea. There, the “crown of nature” lies in wait for many animals, which sometimes people are unable to cope with. One of these is Chironex fleckeri - the most dangerous jellyfish in the world. Their distribution range is the north of Australia and the islands of Indonesia in the Pacific and Indian regions.
From November to May, the most poisonous jellyfish in the world can be found near the shore, where they swim to breed. Australia's beaches are usually empty at this time of year, and for tourists special signs, warning of danger, and those wishing to swim are usually not noticed. The use of nets underwater for protection is not rational, since another poisonous jellyfish Irukandji (the size of a fingernail) is able to pass through all obstacles.
Chironex fleckeri is a cubic jellyfish, so its other names are box jellyfish or Australian wasp jellyfish.
On the surface of the tentacles of one specimen there are many stinging cells, which can kill up to 60 people in a few minutes. More than 100 deaths have been officially recorded over the last century alone.
Among their fellows, the class of box jellyfish is considered quite developed - they do not just move with the flow, but choose a direction. The speed of the most dangerous jellyfish in the world is 3-4 knots (about 2 meters per second). In addition, she can see - there are 4 groups of light-sensitive elements on the sides, consisting of 24 eyes. It has not been scientifically proven whether they are used for tracking or recognizing objects, but a poisonous jellyfish that can track its prey, you see, changes the idea of it as a harmless piece of jelly, which is abundant in the sea. In the photo is an Irukandji jellyfish.
The danger of the wasp jellyfish is that it simultaneously affects the nervous system, skin and heart. A person in a state of shock experiences an incredible burning sensation and excruciating pain, which prevents him from quickly getting to the shore or into the boat. It happened that people died within 4 minutes from a heart attack after coming into contact with the tentacles, without even having time to ask for help (this is much faster than in contact with any poisonous snake or spider). The only way to neutralize the poison is with vinegar; all other methods (rubbing, bandaging) will only aggravate the problem.
The jellyfish is quite large (the diameter of the dome reaches the size of a basketball, up to 30 cm). Its color is pale blue and transparent, which allows it to get close to the victim. This is usually what the world's most poisonous jellyfish does - it floats freely, waiting for some small fish to stumble upon one of its deadly tentacles.
At each corner of the dome there are 60 tentacles, which contract when moving from 15 cm to 3 meters. Interestingly, even when washed ashore and dried by the sun, the box jellyfish retains its deadly poison. When it gets wet (for example, by stepping on it with bare feet), a person can get burns that will bother him for several more weeks and scars that will then remain for life. And the lethal dose of poison is contained somewhere in 3 meters of tentacles (5000 stinging cells).
The main food of these marine animals is small fish and shrimp. But turtles are very fond of eating the most poisonous jellyfish in the world, which over millions of years of evolution have become completely insensitive to its toxins.
The ancient Greek myth about the Gorgon Medusa is incredibly suitable for this most dangerous jellyfish in the world - if the first one turned all living things into stone at one glance, then the Australian wasp is capable of killing a person even with a second touch (especially if he has heart problems). And those who want to go diving in the north of Australia should watch a video about this marine life to know the enemy by sight.
Evgeny Marushevsky
freelancer, constantly traveling around the world
It's ridiculous to turn down an exotic vacation after learning that there will be wasps. But if we're talking about about the sea wasp, then quickly change your tickets to another direction!
We are not talking about an annoying striped insect or another flying creature similar to it that lives off the sea coast. A wasp “swimming” in sea waters (sea wasp) is the most poisonous jellyfish in the world. That's what people called it dangerous creature, which has its official name - Chironex fleckeri. It belongs to the class of box jellyfish, a species of marine cnidarians. Its distribution areas are considered to be the waters off the coast of Northern Australia and Indonesia.
In general, these inhabitants of the seas and oceans are 95% water. They lack a brain, but at the same time they have effective weapons. Most "jellyfish" have stinging cells that can release a deadly sting. The interesting thing is that before this, the pressure inside them reaches 136 atmospheres! After this, the cell cracks and the toxin flies out at a speed that far exceeds the flight of a bullet. This phenomenon is considered one of the fastest movements in nature.
The sea box (its second “pseudonym”) has earned its fame for its ability to inflict painful and fatal burns: its long tentacles sea creature covered with nematocytes - stinging cells containing poison. A translucent creature of “innocent blueness” is capable of destroying sixty people in three minutes! Observations over the last hundred years tell of the same number human deaths from "rendezvous" with a sea wasp.
In its "jellyfish society", Chironex fleckeri is considered one of the largest. Its dome is the size of a basketball, and its translucent blue body makes it inconspicuous in the water column. This adds danger to anyone who wants to splash around in the sea.
It has four bundles of tentacles, fifteen in each. When this dangerous beauty swims, they contract and are no more than 15 centimeters in length. But when it’s time to hunt, the tentacles become thinner and grow up to three meters!
Like other representatives of the box jellyfish class, the box jellyfish has light-sensitive devices that are equipped with two dozen eyes (our heroine has 24). Before today It is still not known whether these “eyes” are capable of tracking an object and forming images, because jellyfish completely lack a central nervous system. Scientists have differing opinions on this matter.
The sea wasp's menu consists of small fish and shrimp. But the poisonous creature itself can go for lunch as the main course. sea turtles- the only animals that are absolutely not vulnerable to the venom of the blue jellyfish, and it is part of their diet.
The most terrible burns of Chironex fleckeri can cause instant death, since the poison strikes it at once nervous system And skin. The pain that appears immediately after contact with its tentacles is so strong and painful that it can lead to death from painful shock. But for a burn to cause trouble of this nature, the amount of poison must be truly impressive. This is considered contact with three meters of tentacles of a box jellyfish.
The poison works quickly! History knows of cases of death from a sea wasp burn that occurred in no more than four minutes. Note that this is much faster than the tragic consequences of a snake or poisonous insect bite.
Despite the deplorable picture, there is an antidote to this jellyfish. But, unfortunately, it is often difficult to help a victim who is far away. Such a swimmer does not have time to swim to the shore or boat and dies of a heart attack. But if you managed to help pull the victim out of the water, then immediate remedy- This is vinegar that can neutralize nematocysts that do not have time to react. It is strictly forbidden to rub the bite site or pour water or other liquids on it, which will provoke the release of toxic substances.
If dangerous meeting occurred, then it is important to remove the tentacles that wrap around his body from the victim. This should be done carefully, using rubber gloves or tweezers. It may surprise you, but even remote tentacles carry serious danger to a person. And that's not it! Their dried fragments are restored with the slightest moisture. It is known that ordinary table vinegar can slightly neutralize the effect of “jellyfish” poison.
In the practice of treating Australian snake bites, a simple technique is used to prevent the dangerous distribution of venom throughout the vessels: rigid fixation of the affected limb with a bandage. The same method cannot be used in cases of burns from box jellyfish, since bandaging only helps the nematocysts. It is very important to administer the special serum on time.
Despite the fact that warning signs are installed in places where poisonous jellyfish may appear, “brave” tourists often ignore such signs. The authorities have thought of an opportunity to let vacationers splash around in sea water: Public beaches have perimeter nets.
The five most poisonous jellyfish in the world
The Miroscope tries to “open the eyes” of those inexperienced tourists who believe that the water is the best scary beast- shark. The translucent cute jellyfish, as you have already found out, can be much more dangerous if you let your guard down.
So, you are familiar with the sea wasp (aka the boll wasp). Fortunately, it’s in absentia :) But she’s not the only one on the list that travel lovers need to know. Let's continue our acquaintance!
Number two - irukandji
Her abode is the Pacific Ocean in the region of Australia. However, sudden warming on our planet allowed scientists to make disappointing forecast: the jellyfish appeared in the World Ocean and its spread there continues.
A small “umbrella” no more than 25 mm in diameter has four meter-long tentacles dotted with stinging cells. If the box jellyfish shoots out its poison throughout the entire cell, then the irukandji sprays it only with the tip of the tentacle. Some bathers do not even pay attention to the mini-burn, but the poison begins to act slowly, gradually intensifying. Within an hour the person becomes ill: terrible pains in the body, including internal organs, headache. Nausea appears, blood pressure rises, and pulmonary edema begins. In rare cases, death may occur.
How to help the victim? Immediately treating the burn site with vinegar will help somewhat relieve the effect of the poison. IN medical institution the patient's life is saved by supporting special drugs until the poison leaves the body on its own. Unfortunately, no antidote has been found for Irukandji.
It must be remembered that the nets that help prevent sea wasp visits on beaches will not protect you from small irukandji at all.
Number three is physalia. She is also “The Portuguese Man of War”
Despite the fact that this type of jellyfish prefers tropical waters, its accumulations are sometimes observed off the coast of France and Great Britain. During real invasions of physalia, many Spanish and Italian beaches are closed. The beaches of Thailand also suffer from “ships”.
This strange creature(in fact, it does not belong to jellyfish) - a real colony amazing organisms of four polyps: a gas bubble that rises above the surface of the water, and others hiding under water and responsible for different goals. The length of the defensive tentacles can reach 50 meters!
The venom of the tentacles rarely causes death, but the pain caused by its contact with the skin is excruciating. In addition, other symptoms arise: body temperature rises, it becomes difficult for a person to breathe and stay afloat. Traces remain on the skin - bright stripes-burns that will remain for life in the form of scars. Fesalia, which washed ashore sea wave, remains dangerous for a long time.
While the sea wasp is very easy to miss in the water, the “boat” is clearly visible on the surface due to its bright color. At night, colonies of these marine organisms are able to create a beautiful glow.
Number "four" - cross jellyfish
Yours unusual name This jellyfish received a clear cross located on its body. It is formed by internal organs, which are clearly visible through its colorless umbrella. The largest specimens of the cross do not reach more than four centimeters in diameter ( the average size- 25−30 mm). Along the edges of the transparent dome there are from six to nine dozen thin tentacles. When expanded, their thickness exceeds the body thickness of the jellyfish by five to seven times. Jellyfish are often called “clinging” jellyfish because their tentacles are covered with suckers.
The beauty can be found in the eastern waters of the Pacific and Atlantic. It began to be observed more and more often in Primorye. She prefers sea thickets, where the water is perfectly heated and is not crystal clear.
Unwanted contact with a cross will not lead to death, but will be remembered for a long time by painful sensations. The surprising thing is that repeated burns can already lead to death.
If a swimmer is burned, they should immediately get out of the water and seek help from a doctor. Within half an hour (and sometimes even earlier) after meeting the tentacles of the cross jellyfish, symptoms appear: limbs go numb, pain seizes the lower back, breathing becomes difficult, nausea and constantly want to drink. The poison can continue its effect for up to 4 days until it leaves the body.
Number “five” - giant cyanea (hairy cyanea, “lion’s mane”)
Meet the most big jellyfish: the diameter of its dome exceeds two meters and the length of the tentacles is up to thirty-seven meters!
The giant's habitat is cold or moderately cold waters ( northern seas Atlantic and Pacific Oceans, Arctic seas). You can also meet it off the Australian coast. IN warm waters she is not comfortable and even once she gets there, she is not able to grow more than 50 centimeters.
Her appearance depends on the size. Thus, small specimens of these jellyfish are yellow-brown or orange in color. More impressive cyanens have inclusions of brown, scarlet and purple colors.
Why is her name " lion's mane"? Look at the photo. Numerous tentacles resemble the tangled mane of the king of beasts. But stinging cells are unknown to this predator, which cannot be said about its marine “double”.
Cyanea tentacles contain a strong poison, but not fatal to humans (only one death has been recorded in the world). Contact with jellyfish is dangerous allergic reaction, which is accompanied by a painful rash on the body.
Of course, you didn't intend to swim in the company of jellyfish. But, as they say, God protects those who are careful!
These animals are 95% water, they have no brain and eat and defecate from the same canal, but jellyfish are equipped with surprisingly complex and effective weapons. Most species have stinging cells called nematocysts (cnidocysts). Before these cells release their sting, the internal pressure reaches up to a frightening 2000 psi (136 atmospheres) after which they crack, releasing their toxin like a harpoon. This is one of the fastest movements in nature and even faster than a bullet.
Although they have evolved to attack small fish, the sting of a jellyfish also plays a defensive role. Depending on the sting, toxicity to humans ranges from mild irritation to a potentially fatal condition where death can occur within minutes.
So, after much research and without further ado, we present to you the most dangerous jellyfish, known to man.
5. Sea Nettle (Chrysaora)
Photo. sea nettle
Sea nettles are common along both coasts North America. They appear to be most often seen near the Chesapeake Bay. Here they unite and form huge flowers (this is technical term for many jellyfish), which in summer months poses a threat to swimmers.
Large jellyfish reach up to 30 cm (1 ft) in diameter. They have 24 tentacles that reach over 2m (6ft) in length and are where the infamous stinging cells are found.
Touching sea nettle can be extremely painful and will leave a painful rash on the skin for about an hour. They are not dangerous at all, although it is very rarely necessary health care. There are reports that bites are more exotic looking Chrysaora are more deplorable.
4.Cyanea capillata
Photo. Hairy cyanea
Hairy cyanea is largest species of the jellyfish known to man. In diameter it can reach up to 2.5 m (8 ft) or more, and with tentacles stretching over 30 m (100 ft), these jelly monsters can weigh about a quarter of a ton. They also gather in large flocks, which means their convergence on your local beach could seriously disrupt your holiday.
Hairy cyanea is a cold-water species and can be found throughout North Atlantic, including the UK. It may also be found in cold Australian waters, where some lifeguards allegedly wear tights to provide partial protection from bites.
The bite itself can be quite painful and many sources (including National Geographic) describe it as potentially fatal. It is known that, like most jellyfish, the sting remains active for a long time after the death of the jellyfish itself. In a recent incident on a beach in New Hampshire, USA, cyanea was cut by screws and individual tentacles reportedly stung 150 people.
3. Portuguese Man of War (Physalia physalis)
Photo. Portuguese man of war
To be honest, the Portuguese man-of-war or dung fly (physalia) is not a jellyfish. In fact, it is not even one animal. It is a colony of organisms working together in peace and harmony. The name comes from the air filling the bubble, which acts as a sail and a sail, and in the 17th century it reminded people of naval vessels, which is when it was called a warship.
In Australia it is called blue bottle because it is blue.
The ship is found in all the world's oceans and has even been spotted as far north as Scotland, this is largely due to warm current Gulf Stream.
Bite Portuguese man-of-war very painful, about 10,000 bites occur annually in Australia alone. The bite itself is characterized by a painful sensation, as if you were hit with a whip on the skin. This can last from one hour to several days. The main risk is the systemic effects of the poison. In severe cases, intense pain is followed by fever, shock and impaired heart and lung function, which can lead to death.
In August 2018, dozens of jellyfish were spotted on the beaches of the Indian city of Mumbai and stung more than 100 people on the beaches of Juhu and Aksa, causing panic and fear among people. The poisonous sting of the Portuguese man-of-war can kill fish, but not people. Some shopkeepers tried to help victims by rubbing lemon on the affected area for immediate relief. “The affected part should not be watered a large number of vinegar and hot water" said State Fisheries Commissioner Arun Vidhale at the time.
2. Irukandji jellyfish (Carukia barnesi)
Photo. Irukandji jellyfish
Irukandji jellyfish are small in size, which is perfectly compensated by the strength of their poison. It got its name from the Irukandji, a tribe in Northern Australia where these jellyfish were first seen. However, this jellyfish is very widespread and can be found very far away, even in the British Isles.
At just 5 mm (0.2 ins) in diameter and with tentacles less than 1 mm, it is one of the smallest members of the order box jellyfish. The venom is insanely strong and is considered the most poisonous animal on earth, more than 100 times stronger than that of a cobra. In addition to this, the Irukandji jellyfish is unique in the structure of its stinging cells as well as its tentacles.
The only reason this animal is not at the top of the list is its small size. Despite this, its bite is without a doubt potentially fatal to humans. One bite will not kill unless appropriate treatment is given. Non-critical bites can lead to Irukandji syndrome, then symptoms such as painful spasms, severe pain in the back and kidneys, burning of the skin and face, vomiting, headache and increased heart rate. Victims also described a “feeling of doom.” The good news is that the bite itself is not very painful!
1. Sea wasp (Chironex fleckeri)
Photo. sea wasp
It goes without saying that this is the most poisonous and deadly jellyfish found in Australia. The variety of box jellyfish, known as sea wasp or sea stinger, are widely considered to be one of the deadliest creatures on earth. Along with other box jellyfish, they are responsible for at least 5,568 officially recorded deaths since 1954. In Australia, these jellyfish kill 1 person every year and another 100 people in Southeast Asia.
The 15 tentacles can reach up to 3 meters (10 feet) in length and are each covered with about half a million poisonous microscopic stinging cells. Each animal is estimated to contain enough poison to kill 60 adults. The poison acts too quickly and can kill in a few minutes, causing cardiovascular failure. It also affects the nervous system and skin cells.
Video. Box jellyfish - Sea wasp
In fact, the sting has been compared to the touch of a red hot iron. It has also been reported that the pain can be so severe that it can lead to shock, followed by drowning or cardiac arrest. The pain may continue for several weeks and then leave scars on the body that resemble marks from a whip.
With 24 eyes, four brains and an impressive 60 anal regions (whatever those are), she is certainly an advanced and formidable creature.
The sea wasp is descended from the cnidarian class of Box jellyfish. This animal is considered quite rare and the most dangerous jellyfish in the world for humans. There are many types of jellyfish in the waters of the oceans and seas. But, by rights, the most poisonous is the sea wasp.
The jellyfish got its name because it stings exactly like an ordinary wasp, only the poison of this sea animal is much stronger. If it gets into a living organism, then there is practically no chance of salvation. If a diver accidentally encounters a school of sea jellyfish, he may not be able to come ashore.
What is a sea wasp?
In the vastness of the ocean you can find a large number of the most dangerous and diverse animals that have not been fully studied. One of them is the sea wasp. It belongs to the class of box jellyfish. The peculiarity of this predator is that it is almost impossible to see. A sea jellyfish sneaks up unnoticed and stings the creature it comes across. People called this beast “invisible death.”
Those who saw sea jellyfish, did not speak of this creature as a monster. Compared to their cousins, these jellyfish are relatively small size. In their shape, they resemble a cube. Average, body diameter does not exceed 5 centimeters. There are individuals the dome of which reaches 25 centimeters. But such a specimen can be found extremely rarely.
The weapons of the most poisonous jellyfish in the world are its tentacles. The average tentacle length is one and a half meters. Their maximum amount can reach 60 pieces. If a sea wasp clasps its prey with all its limbs, then fatal outcome can't be avoided. With the help of special glands in each limb, a very strong poison is produced. At the sea wasp the venom is many times stronger than that of a snake.
Another feature of this sea creature that everyone still can’t figure out is world scientists, is why the most poisonous jellyfish needs eyes if it does not have a brain. Can she see?
Based on research results, it is known that this sea animal actually has there are eyes. There are as many as twenty-four of them. The visual organs are divided into 4 groups. Each group has 6 eyes.
Sea wasp jellyfish habitat
Most people believe that jellyfish can live in absolutely any body of water. But this statement is erroneous. The only habitat of the sea wasp is Australia. Marine life They prefer to choose the northern shores as their habitat, where the waters are relatively shallow and contain a lot of corals.
Lifestyle of the most poisonous jellyfish
It's no secret that the most dangerous jellyfish in the world is a very active and aggressive hunter. The sea wasp hunts while still. As soon as the victim touches its invisible limbs, a powerful stream of poison immediately penetrates the prey. It is worth noting that the jellyfish attacks its prey several times. Thus, the victim dies much faster. The venom of this predator is considered very strong. It affects the nervous system and affects the heart and skin.
Its diet includes small fish and crabs. Having stung the prey, the jellyfish uses its tentacles to pull it towards its cone, where the victim is calmly digested.
The main place for obtaining food is in coastal zones. When not hunting, predators stay away from the shore. It often happens that as a result strong storm, these animals are washed ashore, where there is a large concentration of people.
Reproduction
Reproduction occurs in the sea wasp, as in all representatives of this family. First of all, eggs are laid, from which small larvae emerge. Immediately after their appearance, they stick to the bottom, forming a single polyp. Polyps reproduce by budding.
After a small jellyfish breaks away from the polyp, it is ready for independent life and immediately goes in search of food. Because the sea beast that was born left the polyp, it withers and suddenly dies.
Does a sea wasp attack humans?
Poisonous jellyfish pose a huge danger to humanity. However, she uses only what she can eat as her main hunting object. Humans are not included in the sea wasp's food list. Having met a person, the jellyfish tries to swim away. It stings a person only if a collision is inevitable. Divers mainly encounter this bite.
After the animal has been stung several times, the body receives great amount poison.
The effect of poison on the body manifests itself in several stages:
- redness of the stung area of skin;
- the burn site begins to swell;
- dizziness;
- high fever;
- cardiac arrest is possible.
Death can occur instantly or after two days. It all depends on how much poison the jellyfish injected into the body.
This predator swims very quickly. Due to its speed, the poisonous jellyfish can maneuver perfectly between corals. This predator can only be detected at shallow depths. Usually sea wasps lead night look life. During the day they hide at the bottom, but as soon as the sun begins to set, they float to the surface.
Reminder for tourists
When going on vacation to a place where there is a high risk of encountering these predators, tourists should adhere to some tips:
- It is worth knowing that when meeting a jellyfish, it must be carefully circumvented. Its tentacles are capable of extending over quite a long distance.
- Diving on greater depth, better refrain from touching anything with your hands.
- It is not recommended to go into the water after a storm. There is a high probability of contact with fragments of a tentacle.
If you still meet with aquatic inhabitant took place, then:
- thoroughly rinse the bite area big amount salt water;
- treat the wound with vinegar or strong alcoholic drink;
- very carefully remove the remaining tentacles from the wound.
After the procedures have been performed, you must urgently seek help from qualified medical personnel.
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