The 4 deadliest spiders in the world

To the spiders they are on practically every continent, and although not all of them are poisonous, some are dangerously deadly to humans. So keeping your distance is never too careful. Find out now what are the deadliest spiders that you should avoid contact.

Read more: tarantula spiders

What are the most dangerous spiders in the world?

brown recluse spider

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Considered one of the deadliest spiders in the world, the brown recluse spider, scientifically called recluse loxosceles, is commonly found in the southern and central United States and tends to hide in dark, sheltered places.

The bite of this arachnid can be deadly, as this species contains a venom whose toxin causes skin necrosis, that is, tissue rot. The most common symptoms are burning and itching at the site of the bite, as well as nausea and fever, which can progress to more serious conditions, especially in children.

black widow spider

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belonging to the genus Latrodectus, The black widow spider it is one of the most venomous found on most continents except Antarctica. Aesthetically known for its shiny black coloration with a red hourglass shape drawn on the lower abdomen, the female is the only one dangerous to humans.

The venom of a black widow, although released in small amounts, is 15 times more potent than that of a rattlesnake. Despite this, fatalities are rare. People who are bitten by this spider experience fever, nausea, restlessness, muscle cramps and shortness of breath for several days.

Brazilian wandering spider

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Also known as the wandering spider or banana spider, this species is one you definitely want to avoid. Found in the dry and humid tropical forests of South and Central America, they belong to the genus Phoneutria, which in Greek means assassin.

Extremely aggressive, they don't usually stay hidden, as they prefer to actively hunt their prey, especially at night. Its neurotoxic venom affects the nervous system, causing increased salivation, loss of muscle control and breathing problems.

funnel web spider

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Usually, in the class of arachnids, the female spider tends to be the deadliest, but in this species the male has the most toxic bite. It is predominantly found in Australia and New Zealand and can cause changes in the nervous system, increased heart rate and numbness. Therefore, any attack by this arachnid must be treated urgently.