THE funnel web spider is regarded as one of the world's deadliest arachnids.
It's no surprise that arachnophobia is one of the most common fears, as these critters cause devastation when they bite.
But what is a funnel web spider and are there any other species that are more dangerous?
What is a funnel spider?
The funnel web spider is native to Australia and it's regarded as the world's most dangerous arachnid in the world because it can kill in just 15 minutes.
There are around 30 species of funnel spider and just one bite can be fatal to humans.
Between 1927 and 1981 there are thought to have been 15 deaths from bites.
Male funnel spiders have a much more poisonous bite than females but they live for around eight years less.
They live within a 100 miles (160km) range of Sydney and are most likely to be found under houses, in crevices between rocks or in holes in trees.
And humans are more susceptible to bites than other animals such as cats and dogs.
Celebs going into the I'm A Celebrity jungle will have to be wary of the critters, which are commonly found in the ITV's show filming location in Queensland, Australia.
What are the most dangerous spiders in the world?
While there are over 43,000 species of spider around the world, fortunately, less than 30 have been responsible for human deaths.
These are the five other most deadly spiders in the world:
5. Yellow sac spider
The yellow sac arachnid is very dangerous because it's not submissive and it's venom can damage or destroy cell functions.
And, although it's rare, their bites it can cause lesions, however, a more common reaction in victims is redness or swelling of the area.
This species of spider can be found throughout the United States in silken tubes under stones, in leaves or in grasses and hidden inside houses too.
4. Wolf spider
While the Wolf spider is venomous, it isn't considered aggressive because it often only bites as a form as defense.
However, the arachnid's big fangs can cause physical trauma and this coupled with nausea, dizziness and an elevated heart rate from the poison can leave the victim feeling very unsettled.
The quick moving spiders are usually found in grass, under stone logs or in leaves across the United States and Europe.
3. Widow spiders (Black, Brown and Red)
A Widow bite can feel like a small pinprick but the victim will soon feel severe muscle pain, cramping, nausea, and mild paralysis of the diaphragm which makes it hard to breathe.
A Brown Widow bite is considered twice as strong as a Black Widow bite but there is only a little bit of venom injected.
Death by a Widow bite is considered rare, however it can be fatal for very small children and elderly people.
Black, Brown and Red Widows can be found across the world, including the United States, Canada, Japan, South Africa and Australia and they make their home in a variety of settings including buildings, tires, woodlands and burrows.
The black species are sometimes confused with false widows, a type of spider that can cause injuries similar to that of a bee or wasp sting.
Despite this, the impacts can be more devastating - as seen by a mum who was left unable to walk or talk after being bitten by a critter.
2. Redback spider
Victims are a Redback spider bite are likely to feel a variety of symptoms including, pain, sweating, rapid heartbeats, and swollen lymph nodes.
And while both male and female spiders are venomous, the arachnid is more likely to play dead instead of bite - unless it's protecting it's nest.
MORE IN SCIENCE
1. Funnel spider
And the number one most deadly is considered to be the funnel spider.
If you're scared of the creepy crawlies make sure you know how to spider proof your home.
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