The Ten Most Dangerous Spiders in the World

The Ten Most Dangerous Spiders in the World
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Do you suffer from arachnophobia? If you do, you are scared of spiders. The good news is that you are not alone. Up to 30.5% of the US population fear spiders! It is one of the Top Ten Phobias suffered in the world. Interestingly, there are other cultures where people love spiders. They love eating them! However, stay away from these ten extreme spiders even when you’re suffering from extreme hunger pangs.

  1. The Brazilian Wandering Spider

This venomous hunter is appropriately named as it is from Brazil and an aggressive wanderer. The hunting instinct and the ‘wanderlust’ make it travel huge distances across Latin America. It even hitch-hikes in banana shipments to the USA. It is the most poisonous spider in the world .Its aggression matches the intensity of its poison. Its size is about 17 cm. When pressed, it bites several times. Its bite is fatal to children. Death can happen in minutes even after anti-venom has been administered.  

 Brazilian Wandering Spider photo

  1. The Black Widow Spider

Its venom is 15 times stronger than that of a rattlesnake, causing nausea, breathing trouble and spasms. Sometimes victims can even suffer from partial paralysis.

The name comes from the strange behavior of the female. It has a tendency to consume its mate. In the process it becomes a widow. Females are about 1.5 inches long. Males, unfortunately, are half their size. Females can be identified by a red hourglass shaped marking on their bellies.

The Black Widow Spider photo

  1. The Brown Widow Spider

It is a cousin of the Black Widow Spider. They are lighter in color-brown, black or grey. They can be identified by their egg sacs.  Their venom is a neurotoxin but less dangerous compared to the venom of the more famous cousin, because their bite delivers lesser amount of venom.

The Brown Widow Spider photo

  1. The Brown Recluse Spider

They are slow and reclusive, hiding under beds or in closets, and have a marking on their head that resembles a violin. Because of this the spiders are also known as ‘fiddlers’ or ‘violin spiders’. A person bitten by this spider may not feel the bite, but dark lesions develop around the inflamed bitten area due to a particular protein in its venom. There is lot of tissue damage because of the venom.

The Brown Recluse Spider photo

  1. The Six-Eyed Sand Spider

It has six eyes and likes to bury itself in the sand, waiting patiently for its prey, which could be a careless scorpion. It is also called a Six-Eyed Crab Spider because of the flat stance it takes. It inhabits South Africa and has highly dangerous venom which leads to blood vessel leakage. It also damages tissues. In one known case, a victim lost an arm. No anti-venom has been developed so far.

 Sicarius hahni

  1. The Chilean Recluse Spider

As the name suggests, it is found in Chile and it is shy in nature. Its venom can cause lesions and strong systemic reactions including death. Some experts consider it to be the most dangerous Recluse Spider.

Chilean Recluse Spider

  1. The Northern Funnel Web Spider

These spiders weave funnel shaped webs to hide in or to trap prey. They are natives of Australia and live in trees. Their venom can kill very quickly if no anti-venom is available immediately. Very often, they fall off trees and can be seen in swimming pools. They cannot swim, but they trap some air on their hairy bodies to float.

Northern Funnel Web Spider photo

  1. The Sydney Funnel Web Spider

One of the most dangerous spiders, this native of Australia has caused many deaths in Eastern parts of the continent. The venom contains a compound that is an ion channel inhibitor. The female lives in the comfort of silk-lined burrows, while the male wanders around in summer looking for willing females. After mating a few times the male dies. The female rarely leaves her silken retreat where she lies protecting the egg sacs.

  1. The Wolf Spider

These spiders do not make webs. It was thought they hunt for their prey in packs – hence the name Wolf Spider. They move very fast and are also called Hunter Spiders. They have 8 eyes arranged in an interesting arrangement. Two large eyes are in the centre, two medium sized eyes at the top and four small ones in the lower row.

Wolf Spider photo

  1. The Mouse Spider

It is a native of Australia. The abdomen has soft furry growth like that of a hairy mouse. This gives it the name Mouse Spider. It has huge fangs and deadly venom.  

Mouse Spider



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