In This world there is a lot of lethal creatures And deadliest animals:

15. Box jellyfish (Chironex fleckeri)

Looking as beautiful as it does alien, the box jellyfish is the world’s most venomous creature. Incredibly, it is believed to cause up to 40 deaths annually in the Philippines alone, according to the U.S. National Science Foundation. The creature’s translucent body makes it almost invisible in the water and its stinging tentacles can inject enough venom to kill you in just two minutes.

14. Grizzly bear (Ursus arctos horribilis)

When grizzly bears get into contact with humans, they can be a real and very dangerous threat. Growing up to nearly three meters long and weighing nearly 500 pounds on average, grizzlies are unstoppable mountains of muscle. Furthermore, their bite can be more powerful than that of a tiger and their jaws have apparently been strong enough to crush human skulls in the past.

13. Sydney funnel-web spider (Atrax robustus)

Spiders are nightmare-inducing for many people, but this one has fangs bigger than some snakes do and they are hard enough to pierce through shoes and toenails. The Sydney funnel-web spider is an eight-legged terror capable of bringing death through respiratory failure. Apparently, its neurotoxic bite has been known to have killed a child in 15 minutes.

12. Black mamba (Dendroaspis polylepis)

Africa’s black mamba is apparently the second longest venomous snake species in the world. To begin with, its bite poisons victims every single time, and each attack injects around 120 milligrams of venom – when only up to 15 milligrams is needed to kill a human. And if you try to run, good luck – they are the fastest terrestrial snake in the world.

11. Tiger shark (Galeocerdo cuvier)

Move aside Jaws, there’s a new game in town. Tiger sharks are not picky eaters and will take a bite out of anything – including humans. Although it’s reckoned that they have killed fewer people than the great white, they have also attacked less of them, too.

10. Common death adder (Acanthopis antarcticus)

With a name like this, it’s not going to be cuddly. The death adder lives up to its billing, with a paralytic bite that shuts down its victim’s breathing system if left untreated. And before the availability of a working anti-venom, around 50 percent of bite sufferers died. Oh, and it’s also the fastest-striking snake in the world.

9. Mulga snake (Pseudechis australis)

Unlike many other snakes, which don’t tend to attack unless deliberately or unwittingly provoked, the mulga snake has been known to bite victims while they sleep. Often, it doesn’t just bite, but has a good old chew in order to inject more nerve- and muscle-dissolving venom. And to make things even worse, the wound bleeds profusely, too.

8. Bull shark (Carcharhinus leucas)

With dagger-like teeth, a quick temper, and – most importantly – its preference for shallow water, the bull shark is considered more dangerous to humans than both the tiger and great white shark. Quick to bite swimmers partly due to its keenness at swimming in shallow waters, around 30 percent of its attacks are fatal.

7. Lion (Panthera leo)

The king of the beasts is up to 500 pounds of predatory cat with teeth like daggers and eviscerating claws. To put that into perspective, they compete with crocodiles for prey – but that’s not all. They also have the occasional propensity for killing humans, and have deliberately targeted them in the past. Indeed, statistics published in Nature from Tanzania found that lions attacked 563 people over 15 years from 1990.

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6. Deathstalker scorpion (Leiurus quinquestriatus)

Scorpions have a particularly dangerous reputation, and it’s widely believed that these arachnidas are responsible for roughly 1,000 deaths each year in Mexico alone. Deathstalkers are among the most lethal of their breed – with a tiny sting which paralyzes its victims and can cause respiratory and heart failure.

5. Blue-ringed octopus (Genus hapalochlaena)

One of the deadliest creatures in the world, if you were bitten by the blue-ringed octopus you might not even notice it until the blindness, complete paralysis and respiratory failure kick in. The venom administered by its often-painless bite is so powerful that it can kill in minutes – and there’s no known anti-venom.

4. Pufferfish (Tetraodontidae family)

They might look like amusing grumpy balloons, but the tetrodoxin venom produced by pufferfish is no laughing matter. Each one carries enough of the stuff to kill 30 people and it’s 1,200 times more poisonous than cyanide. Interestingly, pufferfish is actually a delicacy, but it can be a deadly one if it’s not properly prepared.

3. Polar bears (Ursus maritimus)

It’s no secret that climate change is threatening the environment of polar bears. However, studies show it’s also adversely affecting their behavior as well. The melting of the Arctic sea ice is increasingly putting these hungry beasts into contact with humans. And given that polar bears can weigh up to 1,500 pounds and potentially measure three meters, they aren’t to be scoffed at.

2. Tiger (Panthera tigris)

Although lions are known as the king of the beasts, tigers are also a solid contender to the crown. They’re larger on average, just as deadly and their dwindling habitat again puts them into conflict with people. The Guinness World Records lists one Bengal tigress known as the Champawat Tiger as the deadliest of the species. This one animal was apparently responsible for approximately 436 fatalities before it was brought down in 1907.

1. Hippopotamus (Hippopotamus amphibius)

The portly hippopotamus may look cuddly, but leave your first impressions at the door. Hippos are believed to be the most dangerous land mammal in Africa, and are known to have a short fuse and a tendency to capsize boats. The animal’s combination of sheer power, unpredictability and aggression leads to an estimated 500 deaths a year, though some experts believe the number could be as high as 3000.