Spiders are one of the most common arthropods on Earth and can also be divided into two types: poisonous and non-toxic. Most spiders are venomous. The body size of different species varies greatly, about 0.5-160 mm, and the vision is good or bad. Here's an inventory of the 10 most venomous spiders in the world!
One of the top 10 most venomous spiders in the world
Funnel spider
The funnel spider is one of the most poisonous spiders in the world. I live in the suburbs of Sydney, Australia. It carries enough venom to kill five to eight people. If bitten, you will die within 15 minutes. This giant funnel spider is the size of a palm and has poisonous fangs up to a centimeter long. It pierces the nails of the feet. Although male funnel spiders are much smaller than female funnel spiders, they are more than five times more toxic than female funnel spiders.
Brazilian roaming spider
The Brazilian stray spider, also known as the banana spider, is a large spider found in South America, Brazil and other places. Its 10 mm venom gland secreted enough venom to kill 225 mice. If you bite from it, you will experience symptoms such as arrhythmias, increased blood pressure, and vomiting. If left untreated, it can lead to death. Since 1926, 14 people have died of poisoning. It is one of the deadliest spiders in the world, second only to the Sydney funnel web spider. In 2007, Guinness World Records awarded the Brazilian stray spider the title of "Most Venomous Spider".
Six-eyed sand spider
The Six-Eyed Sand Spider is a medium-sized spider. The body length is about 8 - 15 mm, and the leg length can reach 50 mm. It lives in the desert of South Africa. Worldwide, this venom can bite a rabbit's eye within 12 hours, and experiments have shown that this venom is deadly. Toxicological studies have shown that its venom has a strong hemolytic effect and can cause extremely serious harm to the human body. When the venom enters the bloodstream, it causes blood vessels to rupture, which leads to organ failure. There will not be an antitoxin until 2018, so the consequence of being stung will be amputation or death.
Black Widow Spider
Black Widow Spider, also known as Red Dot Spider, is commonly known as Black Widow. In general, black widow bites are not fatal, but the toxin poses a greater threat to children and vulnerable groups. Despite minor bites, their toxicity can directly affect the central nervous system and muscle tissue. Victims of a Black Widow bite will feel immediate severe pain because the toxin directly irritates your "highly sensitive" central nervous system and has other unpleasant side effects. It is ten times stronger than the Rattlesnake Venom. After being bitten, patients will have severe pain, nausea, and mild diaphragm paralysis, but they can recover without serious complications. Its venom is more virulent than that of a rattlesnake, but it secretes less and has a slightly lower mortality rate.
Brown spider
The brown spider, also known as the brown spider and violin-backed spider, is a famous spider that lives in southern North America. The body length is about 6-20 mm, but may become larger. It is highly toxic. Victims quickly develop erythema, ulcers, and nausea. Children react particularly strongly to bites. In 2014, a 5-year-old American boy died within a day of being bitten.
Rat spider
There are 11 known subspecies of the rat spider, 10 of which live in Australia. Only one type of M. tussulena has been found in Chile. Attacks and bites from this rat spider can deal as much damage as the Sydney Funnel Web Spider. In Australia, some species of spiders have been found to have severe symptoms of poisoning when fighting rodents, but none of these spiders. Most medical records describing the clinical manifestations of rat spider attack mention that no antiserum was used and no severe symptoms were reported. Unlike the Sydney funnel web spider, the rat spider is not very aggressive against humans and does not even use venom when attacking humans.
Red-backed spider
Also known as the red-backed spider and the red-backed widow spider, the red-backed spider is mainly distributed in Australia. The red-backed spider is a highly venomous spider that is 2–8 mm long. There are distinct red stripes on the back. It's aggressive. After five minutes of biting, the wound became hot and painful. Without serum treatment, it can die within hours. However, since 1955 (April 2016), only one case of a red-backed spider bite has been recorded.
Indian gorgeous rainforest spider
India's gorgeous rainforest spiders are fierce. They usually nest in a net in tree holes. They move quickly and aggressively. They often bite without warning. They are also more venomous than regular wool spiders, making them unfit to handle or play. Some breeders suffer severe consequences after being bitten, with severe pain and convulsions in the bitten arm lasting several days. It is speculated that they may contain some kind of neurotoxin.
Respect for the tamarind spider
The Jingzhao Tamarind Spider is a unique underground cave bird spider on the mainland. This is a new species discovered by Professor Zhao Jingzhao of Hubei University in recent years. Its appearance is very similar to that of Hainan bird-catching spiders and tiger-striped bird-catching spiders. The individual is smaller than the Hainan bird-catching spider, with a yellow-brown body and no tabby on the back of the abdomen. Body length 55 ~ 61mm. Spiders are ferocious and venomous. In recent years, domestic scientists have carried out pharmaceutical project research on the venom. It is possible for Guangxi farms to cultivate snake venom on a large scale and extract toxins.
Yellow-saced spider
Yellow-saced spiders are the least venomous, but even so, they are still very toxic. Fortunately, they rarely approach humans and bite. One of the risks of being bitten by them is that they are closely associated with MRSA infection. The infection is very serious and can lead to osteonecrosis or tissue necrosis, but its toxicity remains controversial.