5 Most Dangerous Spiders in Australia

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Australia is getting a bad rep all over the Internet for being the deadliest country in the world. The way the Internet sees it, everything here is trying to kill you. We have some of the most venomous snakes, marsupials that can send you to the emergency with one punch, and some of the most dangerous spiders in the world. No wonder the Internet is afraid of us.

Australian spiders are notorious all over the planet. That’s why spider control is one of our most widely used services. Some of our spider species are not only venomous, but also extremely aggressive, which is uncharacteristic for most arachnids. More timid spiders would generally prefer to avoid a confrontation, considering they can’t really prey on us. Not these buggers, though. They’re as mean as they come. Here’s the 5 most dangerous spiders in Australia.

5. Australian Tarantulas

australian-tarantula

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Tarantulas are large, hairy beasts from another plain of existence. They’ve been the stuff of nightmares for as long as humanity has known of their dreadful existence. Whoever said size doesn’t matter has obviously never been near one of these hairy monsters. With a leg span of over 22 centimetres, the average Australian tarantula is about as big as your hand. Let that sink in for a moment.

This is not all. At the front of that colossal hulking mass of horror hide two large fangs, 1 centimeter in length each. If you don’t think that sounds like a lot, let us remind you this is big as some snakes’ fangs. And if that weren’t enough, some species can produce sounds similar to barking.

Luckily, tarantulas bites aren’t deadly to humans. That doesn’t mean they’re not dangerous, painful, and terrifying. Some of the negative effects may include puking, fatigue, and severe pain for hours. Development of spider-based superpowers has not been reported. Furthermore, their venom is still potent enough to kill a cat or a dog, so they represent danger to pets as well, cementing their position in the list.

4. Recluse Spider

recluse-spider

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The recluse spider is like the socially awkward kid in class, who (as it turns out) has anger issues when threatened. The good news is the recluse spider is generally rare, so reported bites to humans are few and far between. The bad news is that when bites do occur, they are truly horrific. The venom of the recluse spider has necrotic properties, which means it literally starts to kill the tissue. Reports state the process is excruciating, while the tissues take a long time to heal.

Lucky for us, the rarity of the recluse spider is not the only good news. It also has relatively small fangs, which makes it more difficult to achieve envenomation. Furthermore, it’s not one of the most aggressive spider species out there, though do not be fooled – it will bite when threatened.

More bad news – the recluse spider seems to be resistant to many insecticides, making it relatively difficult to handle. If these spiders were more common, they would’ve been a real problem. In this case, rarity is here to balance the equation.

3. Mouse Spider

mouse-spider

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Even though it’s not as big or hairy as the tarantula, the mouse spider is scarier for several reasons. First off, it just looks menacing. It can definitely play the part without any preparation. Second, it’s one of the most venomous spiders in Australia (and the world). It’s powerful jaws and large fangs allow it to hunt even small mammals without a problem. This a spider who has no trouble hunting down mice or lizards whereas most spiders in the world eat insects.

The toxicity of the venom makes this spider extremely dangerous. Lucky for us, there are effective antivenoms, which administered in time should prevent a lethal outcome from a spider bite situation.

2. Redback Spider

redback-spider

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Redback spiders gain their name from the distinctive red stripe on their backs. They are relatively common, even in urban environments, and prefer to reside in dry, hidden places such as sheds, mailboxes, in kitchen cupboards, under toilet seats, and other places where you’re in it for a nasty surprise.

Their size isn’t intimidating, but because they’re small, they’re difficult to spot and are pretty swift, dialing the danger factor up by quite a bit. This accounts the relatively large number of bites compared to other spiders on this list.

Their bite can be lethal. Their venom is a neurotoxin which can shut down different systems in the human body. However, an antivenom was introduced in the middle of the last century, so the number of deaths has fallen drastically (there hasn’t been a single reported case in more than 50 years). That doesn’t mean their bite is harmless – even if it doesn’t kill you, symptoms include severe pain, nausea, and general malaise, all of which can last for hours. This is a threat that should not be taken lightly.

1. Sydney Funnel-web Spider

sydney-funnel-web

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The Sydney funnel-web spider is the most dangerous spider in Australia, and quite possibly the world. It’s often found in forests, but urban areas aren’t a foreign concept to this deadly creature. As long as a place is hidden and humid, it’s perfect for them. They can easily move into a backyard or even fall into a swimming pool, making them relatively common.

What makes the Sydney funnel-web so dangerous is the fact that it has lots of venom and it’s not afraid to use it.  The spider has enough venom to kill a full grown adult and delivers it through multiple painful bites. It can lead to multiple organ failures.

Its fangs are bigger than those of the brown snake and are strong enough to pierce through fabric, shoes, and even fingernails. To make matters worse, the Sydney funnel-web is extremely aggressive. It doesn’t need much to be provoked and start biting left and right.

The good news is there’s an effective antivenom, so the lethality of the bites has been significantly reduced. Funnel-webs are far from harmless, regardless. With their extremely strong and painful bite, they can cause you to agonise for quite a while.

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