The Most Dangerous Species On The Planet

28/11/2017 - 2:34 11609 Views

The Most Dangerous Species On The Planet

In the great, big world of Nature, there are many fierce creatures, of every possible dimension, that can be very deadly, very quickly. Here’s a list of the most dangerous species in the animal world. You won’t believe why many of these animals made it onto our list>>

Poison Dart Frogs

This frog is found in the jungles of South and Central America and has enough poison to kill 10 adult men. It gets its poison by assimilating it from the plants it consumes. The name is spot on, as indigenous tribes use its secretions to make poison arrows.

Polar Bear

Not only it’s the largest carnivore on Earth, it’s also not afraid of humans. Having no natural predators, the polar bear will just about anything that contains meat, including others of its kind. They don’t generally kill humans, mainly because there aren’t many around to begin with.

Green Anaconda

Enormous in size and scary to look at, the anaconda is the largest living snake in the world. They live in the damp areas of the Amazon and, whilst not venomous, they are still extremely dangerous, as they kill by constriction and eat their prey whole. They don’t eat humans, but we wouldn’t recommend getting near them.

Mediterranean Black Widow

Looks can be deceiving, but when it comes to this critter, it looks like it may be even deadlier than the original Black Widow. If the crazy pattern on its back doesn’t scare you off, its nasty bite and venomous glands certainly will.


This little fellow doesn’t seem much, but the pores all over his body can emit cyanide gas and poisonous secretions that can burn exoskeletons and irritate the skin of larger predators. Whilst not fatal to humans, you wouldn’t want any of those crawling on you.!

Bullet Ant

More than an inch long and capable of climbing anywhere, these ants bite with such ferocity that it feels like you’ve been hit by a bullet (hence the name). You really don’t want to have any of these near you.

Blue Ringed Octopus

Don’t let its small size deceive you, this octopus holds enough venom to kill 26 adult men, and there’s no antidote. If one of your friends ever gets bitten by one of these you better know CPR, because they will soon be paralysed and unable to breathe. However, they will be conscious for the next few hours, until the venom is neutralised. Assuming someone keeps on with the artificial respiration, of course.

Tarantula Hawk

This spider wasp hunts tarantulas for its main food source but every once in a while they sting and kill humans. Their stinger is full of a neurotoxin that paralyzes their prey, giving them time to drag it away to eat. The toxin can paralyze a human’s face within seconds, and dozens of people are killed every year by these wasps.

Africanized Honey Bee (Killer Bees)

In 1957 a Brazilian bee keeper tried to interbreed European and African honey bees but accidently let some of them get away. These “killer bees”, as they have been dubbed, are much more aggressive than their European counterparts, and are now spread throughout the Americas. They have come to be feared in some regions because of their tendency to swarm relentlessly and aggressively chase their victims for miles.

Indian Red Scorpion

Considered the most deadly scorpion, the Indian Red can be found in India, Pakistan and Sri Lanka. They are extremely dangerous because of their small size and their tendency to hide inside shoes and boots. They kill most people because they are so small and like to hide in your boots. If you ever travel to these countries, make sure to shake your boots every time before putting them on.

Ascaris (lumbricoides) Roundworms

These deadly roundworms infest your body after drinking water that has been exposed to human fecal matter and can cause serious illnesses. They are common in areas where sanitation is poor like sub-Saharian Africa and tropical climates. The larger the infestation, the worse the infection.

Duck-Billed Platypus

It may look cute and fuzzy, but the platypus is actually one of the few living mammals that can produce a lethal venom. Secreted seasonally from its hind limbs, the venom is strong enough to kill small animals and paralyse humans. Don’t try to domesticate it.

Red Bellied Piranha

One of the most feared aquatic predators that resides in the Amazon rainforest, the Red Bellied Piranha holds extremely powerful jaws with razor sharp teeth. They primarily eat other fishes, insects, and other acquatic species. You definitely do not want to be in-water if you know that piranhas resides there as well. A group of piranhas can easily devour a larger sized animal within minutes.

Gila Monster

Found in the Southwestern part of the United States and Mexico, the Gila Monster is one of the only 2 known types of venomous lizards on earth. Although it has a very powerful bite, the poison flows from the grooves of their teeth through chewing instead of an injection process.


While these predators may be wary of human interaction during the day, things change during night time. Hyenas have been known to hunt humans throughout history, a behaviour encouraged by wars and disease outbreaks, as these animals have a sweet tooth for corpses.

Electric Eel

Electric eels aren’t actually eels, but they belong to the “knife-fish” family. They are deemed extremely deadly in the freshwaters of the Amazon rainforest. They are named after their ability to generate a significant amount of electrical charge. Be very wary if you encounter this species as you’ll definitely want to steer clear of being electrocuted with a voltage of up to 600 Volts.

Lanomia or “Assassin Caterpillar”

Gifted with a powerful venom and an innate ability to blend in its environment, this creature is as difficult to spot as it is deadly. Its venom is lethal if not treated immediately and has caused hundreds of deaths in the last 20 years.

Assassin Bugs

A scary one. This bug is also called the Kissing Bug because it bites people near the lips. In addition to that it also spreads the Changas disease, a deadly disease that damages internal organs. It is mostly found in Mexico and other hot climates, and can be lethal.

Bull Shark

Also known as the Zambezi shark, it is usually found in shallow waters off the African coast. It is believed to be one of the most dangerous sharks in the world, mainly due to its incredibly aggressive nature – hence the name “Bull shark”.

Australian Funnel Web Spider

This incredibly dangerous spider got its name because of a tendency to wander and hide in people’s houses and cars, particularly during the day. The Guinness Book of World Records has dubbed it the most venomous spider in the world.


The boomslang venom is a hemotoxin that prevents the blood from coagulating. It is known to cause both internal and external bleeding, that may prove lethal if not treated properly. Thankfully this snake is also quite shy and won’t normally attack humans.


Although they are mostly herbivorous, they are also highly aggressive and are widely regarded as one of the most dangerous animals in Africa. They have been known to attack humans without provocation even to the point of destroying entire vehicles.


It isn’t just the wolverine’s strength that makes it such an effective predator, they also have an apparent lack of fear which they make up for in pure ferocity. Once committed they will fight to the death.

Yellow Bellied Sea Snake

Even though a lot of snakes are lethal, this one is especially famous because its venom is highly concentrated and can kill an adult man in a matter of seconds. Once in the body, the toxin will paralyse the muscles and eventually the lungs, leading to death by suffocation.

Portuguese man o’ war

Deceptively similar to a shell when out of the water, you should nevertheless refrain from touching it if you see it on the beach. The Portuguese man o’ war belong to the Physalia family and it’s similar to the jellyfish – although its sting is much more powerful and can cause paralysis and death.

Yellow Jackets

Yellow jackets can kill humans through anaphylactic shock and they will attack in swarms to protect the hive or their queen. The big ones are especially dangerous, as their venom becomes stronger as they grow. Stay away from them.

Brazilian Wandering Spider

Not only the venom of these spiders is lethal for humans, they are also easy to encounter. They usually lay eggs inside bunches of bananas, meaning it’s all too common to find them in people’s houses.

Tropical Tse Tse Fly

This large blood sucking fly is the primary carrier of the sleeping disease and is therefore indirectly responsible for killing thousands of people every year.

Box Jellyfish

Killing more people every year than sharks, crocodiles, and stonefish combined, this box of death has been labelled “world’s most venomous animal.” Its venom is so potent in fact, that in some cases treatment consists of little more than last minute CPR.

Southern Flannel Moth

An interesting animal, this small caterpillar might resemble the hair style of a certain known politician. You don’t want to get it near you, though, because its larvae are quite hairy and their sting is extremely painful. In some cases people have been known to die from their sting.

Anopheles Mosquito

It may be hard to believe but mosquitos account for more deaths than any animal cumulatively. They spread diseases like malaria, yellow fever, dengue fever, encephalitis and West Nile virus. The Anopheles mosquito or the marsh mosquito is best known for carrying the deadly malaria virus.

Asian Lions

The stereotypical king of the jungle, although they actually live and hunt in the widespread savannahs. They hunt in packs and target easy preys, such as the old, the young, and the wounded. According to statistics, nearly a hundred people are killed every year by lions.

Great White Shark

These legendary predators have a terrible time distinguishing between the edible and the non-edible. Their preferred method is sampling just about anything that floats, including buoys, boats, surfboards, humans. Contrary to what most people think, though, they have no taste for humans. Not that it matters, once you have been bitten and are slowly bleeding to death.

Eurasian Wolf

Back in the days dogs were nothing more than domesticated wolves, but it doesn’t mean you should approach one of these. It is estimated that wolves kill as many as 7000 people every year. Eurasian wolves in particular have a really nasty bite.

Carpet Viper

Responsible for the majority of snake related deaths in the world, this viper uses a hemotoxin similar to that of the boomslang. Whilst not lethal if treated immediately, many people get bitten in rural areas that lack modern hospitals and often bleed to death.

Slow Loris

This cute-looking monkey is one of the few mammals that are actually venomous. Their armpits produce a toxin that becomes lethal when mixed with saliva, giving them a poisonous bite.

Sri Lankan Leopard

The leopard is one of the “five big cats” and has some of the most powerful jaws in the animal kingdom. They are found throughout Asia and Africa, hunting in the tall grass, in rivers, and even from trees. If you hear them roar, just run.


A particularly nasty kind of fly, it lays its eggs inside the human body. Once they hatch, the larvae feed on blood and skin, all the while causing potentially lethal infections to the host.

Cone Snail

One drop of venom from this little bugger is enough to end 20 human lives. Also known as the “cigarette snail,” it has been said that when you are stung by this creature, you’ll have just about enough time to smoke a cigarette before you stop breathing. And, as you probably imagined, there isn’t an antidote.

Castor Bean Tick

So tiny, but also so deadly. This tick’s love for blood can be the bane to the living organism that it decides to feast upon. Upon engorging in their meal from their desired host, it can transmit some of the most lethal combination of bacteria and viral pathogens that can cause the host to become extremely ill.


Both endangered and dangerous, jaguars are found in the tropical Amazon rainforests. They are distinguished by their rosette fur pattern and are much larger and heavier than their leopard counter-parts. They are by far the largest of the big cats family, and they have the most powerful bite as well.


Rhino related deaths are not an uncommon occurrence in many parts of the world. Having terrible eyesight, they are easy to startle and once they have you in their sights it can be hard to make an escape – unless, that is, if you can run faster than 40 mph.


One of the many species found in the States. To most people they are just incredibly disgusting, but larger species have been found to be venomous. They are not lethal to healthy adults, but are still a possible threat to children.

Eastern Brown Snake

The brown snake is likely responsible for most snake bites in Australia. Usually more than one meter in length, it’s an unusually bold snake. If it comes near you, you may not have the time to react before it bites you.

Cape Buffalo

This buffalo has an unpredictable character and has been know to attack humans without provocation. Every year it kills more people than every other African animal, something that has earned it the nickname of “widow-maker”.

Brown Recluse

One of the only two spiders in America you should be wary of, the other being the black widow. Apparently its bite is lethal only to children and the elderly. Brown recluses like to hide in small places such as boots or gloves, so be extra careful before putting them on.

Irukandji Jellyfish

The smallest jellyfish in the world is also one of the deadliest. They can deliver a sting over 100 times more powerful than a cobra. Measuring less than 1cm3, these tiny killers often are not caught in jellyfish nets meant to protect beaches. The so-called Irukandji syndrome, which you get from its sting, includes nausea, severe pain and feelings of impending doom.

Death Adder

While other snakes run when faced with a threat, the death adder freezes, making it all too easy to get bitten if you’re walking through a bushy area and step on one. Its fangs are long and can penetrate quite deeply.

Bengal Tiger

The famous man-eater, this tiger is one of the largest felines in all of Asia. It has a long history of killing people, effectively making it an apex predator throughout the continent.


apeworms are small, flat, segmented worms that live in the intestines of larger animals. One way you could catch it is by eating undercooked or raw meat of an infected animal. Once inside your body these worms can grow to incredible lengths by consuming the food you eat. Pork tapeworms are especially dangerous, as they can leave your intestines and infect other areas like your liver and lungs.

Black Mamba

One of the most feared creatures in the world, some experts have even called it “death incarnate.” In Africa it is the source of numerous myths and legends and it is widely known for being highly aggressive, very fast, and attacking without provocation.

Black Spitting Thick Tail Scorpion

This scorpion gets its name for its particularly thick tail, through which it can inject or spray its poison. They are nocturnal and easily scared, making an hypothetical encounter particularly unfortunate for humans.


Lying camouflaged on the ocean floor, this ugly little mass of destruction calmly waits for other fish to swim by before opening its jaws with lightning speed and consuming its prey. Also known as the “world’s most venomous fish”, stepping on its spines will at best cost you your leg and at worst, your life.


The most dangerous game. We kill for just about any reason, from religion to war, and sometimes for no motive at all. Often times we don’t even kill on purpose. Beware of wild humans running around freely!


The only poisonous bird in the world, the pitohui’s feathers and skin are covered in a dangerous toxin. Although not necessarily lethal, it acts quickly as it just needs to be touched. If you ever see this bird outdoors, keep your distance and don’t touch it.

African Elephant

The world’s largest land animal, elephants can be fiercely aggressive and have been known to trample even a rhinoceros or two to death. They seemingly have the capacity to display bouts of rage and have even engaged in activities that have been interpreted as vindictive, razing entire villages in the process.

Southern Cassowary

It may look like a flightless peacock, but don’t let its size fool you. The cassowary belongs to the same family as the ostrich and the emu and is one of the most dangerous birds in the world. They are fast, their kicks are extremely powerful, and their claws can prove lethal to humans.

Fire Ant

Fire ants are the most aggressive ants in the world and kill roughly 50 people each year. Whilst those numbers might seem low, many cases happen in rural areas and as such are usually not reported. Being bitten by fire ants can cause anaphylactic shock and may lead to death.

Komodo Dragon

Komodo dragons are not choosy. They will eat anything from birds to water buffalos, and sometimes even dig up bodies from shallow graves. When they hunt they approach their prey stealthily, then charge and slash their prey, then wait for it to die by bleeding. They don’t usually kill humans, mainly because their interactions with them are limited. And because they eat just once a month.

Giant Asian Hornet

The giant Asian hornet is one of the most dangerous types of Japanese hornets found that is also known as the “yak-killer”. Its size is enough to make you want to run away.

Army Ants

Much like the Mongol hordes of Genghis Khan, army ants will eat anything on their way and kill the rest. They are especially dangerous since their bite can affect the circulatory system of humans.

Deer Ticks

Deer ticks kill by infecting their host with either Lyme disease or other lethal diseases. They feed off of their host’s blood, thus making the disease spread rapidly. If you go for a trek in the woods of North America, pay particular attention to these fellows – they can be as small as 0,5 cm.


Fleas are rarely deadly to humans but their bites can become infected and cause death. These little blood suckers feed off of their host animals for long periods of time. Your real danger from fleas is their ability to carry diseases.

Death Stalker

This highly venomous scorpion residing primarily in North Africa and the Middle East is responsible for over 75% of scorpion related deaths every year. Although healthy adults can usually survive with a lot of pain, children face seizures, paralysis, and eventually death when their lungs stop working.

Saltwater Crocodile

The saltwater crocodile’s diet includes just about anything, from buffalos to sharks. It kills its prey using the so-called “death roll”, in which it drags it in the water and flips it over until it drowns.

Puffer Fish

Considered one of the most poisonous vertebrates in the world, the puffer fish, strangely enough, is considered a delicacy in Japan. You must make sure to prepare it correctly, though, because it is lethal otherwise.

African Lion

While humans are generally not on their hit-list, some lions have been known to actively seek out human prey. One famous case was that of the Tsavo man-eaters in 1898 who mauled and killed 28 railway workers in Kenya over a 9 month period.

Blue Poison Arrow Frog

These colourful frogs are extremely poisonous. 2 micrograms of their venom is enough to kill a large animal and, in case you needed another reason to stay away from them, the venom is found on their skin. You don’t want to touch them.

Wild Boar

According to hunters, hunting boars is more dangerous than hunting bears. Not only they are highly intelligent, they are also equipped with extremely sharp tusks and can weigh as much as 600 lbs. Add to that that they’re also quite aggressive and it’s clear why should avoid being charged by one of these animals.

African Leopard


Wounded animals usually run or hide, but leopards have been known to put up a fight when threatened, a character that pairs well with their unusual strength. In fact, they are so strong that when they hunt they secure their prey by dragging it up a tree.


Termites are not directly dangerous to humans but, as they eat and process wood, they cut down trees and can make wooded buildings collapse, something that can prove lethal if you happen to be in their vicinity.