The NOPE's of Australia:

Oh, what's that? That doesn't look scary at all. You call this a nope?
What you are seeing here is called the Irukandji jellyfish.
This is actually considered the most scary thing in Australia.
"No... not that little bugger." you say?

YES. THIS. LITTLE. FUCK.

The worst part about it is it's so small... and when it touches you with it's damn near f***ing invisible up to a meter long tendrils, you are f***ed.

You see, one of the defining symptoms of “Irukandji syndrome” is a horrible feeling of doom and impending death, which is appropriate, because there’s a pretty good chance you’re going to die.

It also gives you horrible muscle cramps around your body, severe pain through your back and kidneys, burning, nausea, headaches, and vomiting.

The funny thing is there’s no direct treatment, and the symptoms can last for weeks. All they can do is get you out of the water, and treat each symptom as it hits you, and wait for your body to get rid of the venom itself.

This folks, is the Australian Brown Snake.

There are actually a ton of brown snakes in Australia, some nine or so species that are part of the family, and all of which are extremely toxic.

The most common is the eastern brown snake which grows up to 2m in length, but even the little ones are incredibly venomous.

The brown snake is the world’s second most deadly land snake, after the taipan, and it packs an incredibly powerful neurotoxin/coagulant mix. Not only will it happily kill you, but they’re difficult to identify because “brown” doesn’t really begin to cover it.

They can be a wide variety of shades of brown, they can be speckled, banded, or have other color flecks.

(Oh, Great! An intensely venomous snake that could look like just about anything. Wonderful!)

WRONG! Oh, a tick? Yeah, gross.
But what are you going to say? You get Lime disease? Rocky mountain spotted fever? We have that in America.

Yeah? Well this f***er is called the Australian Paralysis Tick.
Guess what it does? IT F***ING PARALYSES YOU!

Great! Now we're in the middle of f***ing NOPE country, everything wants to kill me, and here you are, just sitting there waiting to be killed by everything, because you Can't. F***ing. Move.

this swarm of Australian soldier beetles should help you out.

Don't worry, they only swarm by the tens of thousands and feed on small creatures... Nothing to worry about here. Move along.

Oh wait... there's another one!

SO I CAN BE REMINDED OF WHAT THE F***ING HELL TO STAY AWAY FROM WHILE IN THE WATER!!

This folks, is the 'Blue Ringed Octopus'.

When annoyed, the creature's brown spots darken and pulsating iridescent blue rings appear, and it produces a neurotoxin 10,000 times more powerful than cyanide.

There is no antivenom to a bite from the blue-ringed octopus, which also causes paralysis and and the inability to breath, leading to a heart attack from lack of oxygen.

Also, you’re awake for the whole time.

In order to save someone, you need to get them out of the water before brain damage sets in, and then perform artificial respiration for hours, until their body naturally deals with the toxin, and they can breath on their own.

The bites themselves are tiny and painless, and each octopus carries enough venom to kill 26 adults.

Meet: The Bull Shark.

Ok, so don't go surfing or swimming out too far right?

WRONG!

The bull shark is known to bite and kill in shallow water while looking for food.

Edit: sorry, this is not a picture of a bull shark, but the facts are straight.

Here's a wild Australian 'Nope Dog' that hunted a f***ing bull shark?

THE. DOG. HUNTED. A. SHARK.

What are you thinking Australians?

Not only does the Australian Dingo hunt sharks, for whatever reason Australia has for keeping these things around... it also feeds on... OH.... about 170 other species or more.

Yeah, it's diet consists of whatever the f**k it wants.

We all know this guy. The GREAT WHITE.

Fortunately, almost no one gets attacked by sharks, and many that do survive just fine.

They’re an easy target because they look freaking evil, and aren’t the sharpest tools in the shed, famously mistaking people for seals... or whatever.

They’re huge, scary, and have way too many teeth. That said, they’re also generally easily avoided just by the vaguest approximation of intelligent behavior.

Yeah, we've all seen the Crocodile Hunter. We know. Yep. Those live down there...
Get on with it...

Yeah, that's a fucking python eating a crocodile.
Didn't see that one coming did you Imgur?

You know what else this python does?

Huh?

(yep, that's exactly what it looks like)

You know what else it does?

That's right! It just goes, "Gee, you know what other country I could 'Nope' myself at?? Papua New Guinea!"

And then it just crawls on the plane, sits there for the entire flight, and decides that Australia's closest neighbors didn't have enough 'Nopes' themselves...

...and also lives to tell about it.

Awww...look at the blue ostrich thingy! How sweet!

Cassowarys are generally shy, but if threatened they will attack you, because they are absolute bastards of animals.

If you annoy them in the slightest, they will bring the fury, and try and kill you in the most vicious way possible, going for you with mammoth razor sharp claws.

In 1958, this is what an ornithologist had to say about them:
"The inner or second of the three toes is fitted with a long, straight, murderous nail which can sever an arm or eviscerate an abdomen with ease. There are many records of natives being killed by this bird."

These days people say the danger of these things is overstated, but I don’t buy that. They’re just biding their time...

Yeah. That's what the 15 dead people said right before they tried to hold them.

The mollusc that lives inside fires a venom-laden dart from the narrow end, and though it would be extremely unlikely to kill a human, would hurt like crazy.

Oh, that? Yeah, that's called a 'Nope Bat', also known as the 'Flying Fox'.

Don't worry though, it doesn't eat humans, and they're generally pretty harmless, that's why she's allowed to hold it.

You heard that right... harmless to humans... that's because its main meal consists of mother f***ing Eagles & Crocodiles!

I guess, apparently, there's enough crocodiles to keep them from starving in Australia, so they leave crazy Aussies like this girl alone.

Edit: I'm very sorry, these bats are not carnivorous... I blame the source. Thank you Imgur lurkers for correcting me... they are still Nope bats in my opinion.

Again, sorry. But I shall leave the original description so the comments on this make sense..

Where were we?

Woah little buddy, you look pissed!

This little 1.5-3.5 cm long spider is known as the 'Sydney funnel web spider'

It might be minuscule, but it has fangs longer than a brown snake's, and so powerful they can pierce toenails.

Humans are more likely to encounter them than some of the other creatures on this list, as they are found in populated urban areas in New South Wales, wandering in gardens and sometimes dropping into swimming pools.

Oh, that?
That's just a giant venomous centipede killing and eating a snake... nothing more.

Move along.

Yep. That's right. This 'Nope tree' native to Queensland is called the 'Giant Stinging Tree' (With many other common names, but scientifically known as Dendrocnide Excelsa).

It doesn't take much imagination to figure out how it got that name.

When encountered, severe stings are caused as the hairs on all aerial parts of the plant latches onto your skin.

This can cause pain for several months.

Treating them involves applying wax hair-removal strips and pulling off, like a large and painful plaster, to remove the hairs that have embedded themselves in your skin.

Australia has some 140 species of land snake, and around 32 species of sea snakes have been recorded in Australian waters. Some 100 Australian snakes are venomous, although only 12 are likely to inflict a wound that could kill you.

This one though, it's called an 'Inland taipan snake'.

But don't worry, they live so remotely, and are so shy, that humans are very unlikely to see one.

So if you do, you are probably stuck in the middle of nowhere, and if it so happens to bite you, you just got injected with enough venom to kill 100 men, and probably have a life span of, say, 45 minutes if it's not treated right away.

This one is great. These 'nopes' that you see are known as the Queensland whistling tarantula!!

And guess what they decided to do...

They just decided to move in and take over a town. Like "Yep. This is ours now. F**k you!"

The story goes: More than 25,000 venomous spiders have descended upon a small town of Maningrida, Australia.

Normally, one would find ONLY two or three hundred of these spiders in one spot.

Luckily, for the town 300 miles east of Darwin, these spiders aren't poisonous enough to kill a human.
*Phew, that was close*

No, instead, the giant bites made by these spiders only causes ripping of flesh and about 6-8 hours of vomiting.

Oh, and they can also survive under water.

This next Nope spider is called 'Red Back Spider'. (When these Aussies come up with names, they REALLY get right to the point, don't they?)

The females are only around 1cm large, but will kill much, much bigger prey, and they are one of the few spider species to practice sexual cannibalism. (yes, you heard that right.)

If they bite you, you’re in for massive swelling, excruciating pain, sweating, fever, vomiting, abdominal pain, and may also cause seizures and a coma.

This excruciating agony can last up to 24 hours.

Luckily the males are too small to do much harm, but the females can, and WILL attack you, and it is not pleasant.

This picture was taken in suburban Australia... if that tells you anything.

That spider is a golden silk orb-weaver, known for capturing large prey in its webs. There have also been sightings of these spiders catching and eating birds!

And you thought YOUR house spiders where scary?

This list wouldn't be complete without the worlds most famous NOPE in Australia...
The NOPE-AROO!
(Look, his head even shakes at the end like: "Nope, mother f***er!")

Sources include but not limited to:
http://www.telegraph.co.uk/travel/destinations/oceania/australia/galleries/Australias-deadliest-creatures/
http://brainz.org/13-scariest-australian-animals/
http://www.swifty.com/destinations/7681/17-nope-animal-pics-that-prove-australia-is-absolutely-terrifying/