Brazilian Wandering Spider

The spider's name is derived from the Greek word for 'Murderess', which accurately describes its nature. It is currently recognized as the most lethal spider in the world. Its neurotoxic venom is 20 times more potent than that of a Black Widow, making it capable of causing death if the anti-venom is not administered promptly.

Being bitten by this spider results in a loss of muscle control, eventually leading to respiratory failure. Additionally, the bite causes excruciating pain that can last for hours until death occurs. What makes these spiders particularly dangerous to humans is their behavior. As their name suggests, they have a tendency to travel and wander, which means they can unexpectedly appear in unlikely places and attack humans by surprise.

Sydney Funnel Web

This dangerous creature, known as the bad hombre, was discovered in 1981 and thankfully, an effective anti-venom was found. It is highly aggressive towards humans and will not hesitate to deliver multiple bites if it senses danger instead of fleeing. With large, needle sharp fangs, it injects a significant amount of venom into its victims with each bite. In a fight, it will cling onto its victim to deliver more attacks, and it is capable of biting through tough materials like shoe leather. It is advised to steer clear of this animal as the male is more venomous, with a potent neurotoxin that can be fatal.

Six Eyed Sand Spider

Living in the deserts of Southern Africa, this spider prefers to hide in the sand to avoid the scorching sun. However, its main reason for hiding is to ambush prey as it passes by. Once it catches its prey, it injects a potent venom for quick results. Tests have shown that a rabbit can die within 5 hours of being bitten due to the spider's necrotic and haemolytic venom. This venom prevents blood clotting and destroys the flesh around the bite, leading to fatal blood loss and a wound that does not heal.

Fringed Ornamental Tarantula

The tarantula is the most feared creature in this region. Although not technically a spider, it closely resembles one and its bite is extremely powerful. If bitten, one will experience intense pain and may even start dancing like the tarantula, which is named after it. The venom causes excruciating pain, muscle cramps, and possibly chest pains. While no deaths have been recorded, many people have required hospital treatment after being bitten. This animal is as unpleasant as it seems.

Yellow Sac Spider

This particular arachnid species is believed to be the cause of numerous spider bites that happen globally. It can be found in various locations including Australia and Canada, and its bite releases a cytoxin that results in an initial sharp pain followed by swelling and blistering in the affected area.

Due to their pale yellow or green coloration and small size of approximately ¼ of an inch, they are quite difficult to spot. If you happen to come across one, it is advisable to avoid any interaction as the aforementioned bite is no laughing matter if you happen to be unfortunate enough to experience it.

Camel Spider

This spider, known as the North African Desert Spider, is aptly named due to its habitat and location. It has adapted to survive the scorching desert heat by burrowing into the sand for shelter and to maintain a cool temperature. While not venomous, its bite can be extremely painful and it is capable of running at speeds of up to 10mph. However, it is the spider's appearance that instills fear in humans. It is one of the largest and most intimidating spiders, reaching lengths of up to 6 inches, with its menacing jaws measuring half that size. Due to their aggressive nature, size, and formidable appearance, it is best to steer clear of these spiders.

Hobo Spider

The Hobo Spider, originally found mainly in Europe, is the first spider on our list. However, there has been an increase in sightings in North America, suggesting their population may be growing there. Also known as the 'aggressive common house spider', it has a venomous bite that can take weeks to heal.

Although not life-threatening, getting bitten by this spider can still be quite painful. Another reason it is included on the list is its aggressive behavior. Unlike most spider species that hide from humans, the Hobo Spider will actively react if it feels threatened. This, combined with their preference for living in houses, makes them quite a nuisance as they are more likely to be encountered.