this short article discusses regarding 5 types of poisonous and dangerous spiders
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Spiders belong to the class Arachnida, phylum Arthropoda, and order Araneae, with eight legs. The types of spiders vary greatly from large to very small, from poisonous to non-poisonous, there are also many types of house spiders.
According to entomologist Matt Bertone of the University of North Carolina, don’t kill any spiders you see in your home, because spiders are an important part of nature and our indoor ecosystem.
These arachnids are usually solitary and almost everything they encounter is harmless and non-aggressive, these eight-legged animals even “help” by eating household pests, some even eating other spiders.
Most of the spiders in the house are barn spiders, web spiders, and jumping spiders. even if they are predators generalistthey tend to eat whatever they can catch.
For example, jumping spiders regularly feed on pests, disease-carrying insects such as mosquitoes. So if you kill a spider, you take a major predator out of the house.
There are about 200 species out of tens of thousands of spider species whose bites are harmful to humans, and there are about 150 species that are capable of injecting venom through a pair of fangs into their prey or enemies.
Some spiders have venom self-protection, where the venom contains venom that can kill and damage the enemy or prey in an instant when the spider’s fangs penetrate the skin of its prey.
The following are types of spiders that have deadly venom and are classified as dangerous spiders:
1. Six-eyed sand spider (Hexophthalma hahnii)
This type of spider comes from southern Africa and belongs to the family sicaridslight brown like sand and 15 mm long and 50 mm wide.
The venom inside this spider can cause effects. necrotic which can cause serious injury and can be life-threatening, especially if the infection spreads.
2. Southern black widow spider (Latrodectus mactans)
The venom of this spider is quite deadly, it contains alpha-latrotoxin which can cause problems with motor nerves and is capable of causing muscle damage, cramps and excessive sweating.
But now there are antivenoms that can be used to treat the toxic effects of this poison. These spiders are widely distributed in the southern provinces of the United States and southern Canada.
3. Brazilian wandering spider (Phoneutria fera)
This spider is among the most dangerous in the world, it is large enough for a class of spider, it has a length of 17 to 48 mm and a leg span of 130 to 150 mm.
This spider lives in the Amazon rainforest, Brazil, and has another name “armed spider” or “banana spider” because it often perches on trees and bananas.
Their venom is known to be a combination of proteins, peptides, and toxins that, if exposed to humans, will cause symptoms of severe pain, burning, and other side effects such as slowed heart rate, increased or decreased blood pressure, vision blurred, stomach pain. cramps, vertigo, nausea and increased sweating.
4. Chocolate Recluse (Loxosceles reclusa)
The natural habitat of this spider is in North America, its size reaches from 6 to 20 mm, with a light brown to slightly golden color. The venom of this spider contains hematotoxics.
The symptoms caused by exposure to the venom of this animal can range from mild to severe depending on the intensity of the bite, in some cases a deep pain and itching will be felt between 2 and 8 hours after being bitten.
Fever, weakness, nausea, chills, muscle aches can also be experienced if we are exposed to this spider venom. In rare cases, it can cause seizures and in severe cases it can lead to a coma.
5. Sydney funnel web. (Atrax robustus)
The Sydney funnel-web spider is a deadly spider native to Australia, the habitat of this animal is in Sydney, New South Wales and the Gold Coast.
The venom of this spider is the most poisonous among other funnel-web spiders. The size of this spider is quite large, between 1 to 5 cm, black and dark brown in color.
Another characteristic of this spider is that it has a hard shell on the front of its body, which is mostly hairless and shiny in texture, this spider is an animal that is active at night or is called a nocturnal animal.
These animals also have a special ability to trap air bubbles in the hair in the area around their abdomen, so they will stay alive when they fall into the water.
The venom is highly toxic and contains a chemical called Robustoxin that can cause fatal damage to the nervous systems of humans and monkeys.
Some of the common symptoms that will be experienced when exposed to the venom of this venom are excruciating pain, nausea, profuse sweating, severe coughing, and breathing problems.
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