The ranking of the 10 most dangerous animals in the world

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Martí Micolau

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The world is truly a wonderful place, full of incredible places that deserve to be visited and explored. But when traveling you must always be careful, especially if you go to little-known areas or in which we are not used to living, areas where nature is the undisputed queen and in which there are many species of animals, some lethal. From large to smaller animals, from those living on land to marine ones. All different, but one more dangerous than the other.

Here's one for you ranking of the 10 most dangerous animals in the world!


  1. Black buffalo (Sub-Saharan Africa)
  2. Horn snail (tropical seas)
  3. Golden Frog (Colombian Western Andes)
  4. Cubozoa (Pacific and Indian Ocean)
  5. Pufferfish (tropical seas)
  6. Black Mamba (Southern and Eastern Africa)
  7. Sea Crocodile (Indo-Pacific)
  8. Moscow Tsetse (Sub-Saharan Africa)
  9. Mosquito (worldwide)
  10. Humans (worldwide)
  11. User questions and comments

10 - Black Buffalo (Sub-Saharan Africa)

In English it is Cape Buffalo. The name Cape, which means head, is due to the horns they have on their heads, with their particular shape.
They are found in Sub-Saharan Africa and today there are about 900.000 specimens in the world.

They are a fairly peaceful species when left alone, they move in groups and are often found around pools of water. It has a nickname, Black Death, which in Italian means Black Death. When they feel threatened or a puppy or group member is attacked it is difficult to get out of an attack alive! In fact, on the African continent, they are there cause of the killing of most of the hunters. The "threat" is surrounded and attacked with head shots by these animals that can weigh up to a ton.

9 - Horn snail (tropical seas)

But the most dangerous animals can sometimes be seemingly harmless and, above all, very small! This is the case of this snail, which attracts attention with their wonderful colored shells. They are found in tropical seas, both on the shore and on the coral reef. Mostly you might encounter them in Hawaii, the Caribbean and Indonesia.

But be careful: small and beautiful does not mean harmless at all! Indeed they are one of the most poisonous snail species in the world! The poison is found in the little harpoons inside the shell, absolutely not to be touched! Their bite is fatal, you must immediately run to the emergency room and hope you can do something. It is no coincidence that this snail is also known as the killer sea snail.

8 - Golden Frog (Colombian Western Andes)

In eighth place we find what might seem a harmless and beautiful frog, very small in size and with a golden color that immediately attracts attention. But, of course, not all that glitters is gold: the golden frog is the most dangerous of the Dendrobatidae family, that is a family of frogs with wonderful colors but extremely toxic to humans!

This small golden frog, also called arrow frog, is found in the rainforests of the Western Colombian Andes and is really small: in adulthood it reaches up to 55 millimeters. Its poison is extremely powerful: the One frog's venom can kill 10 humans. The real problem is that the glands that secrete it are located right under the skin, so even a single touch can be fatal.

7 - Cubozoa (Pacific and Indian Ocean)

From land we pass to the ocean for the seventh most dangerous animal in the world, namely the Cubozoa, better known as Box Jellyfish. It is found in the Pacific and Indian Oceans, but a high concentration is found off the northern coast of Australia.

If you see one make sure you stay as far away as possible, as this type of jellyfish is the most poisonous marine animal! The poison is found in the tiny teeth present on the tentacles, which can reach up to 3 meters in length. Many people, once stung, cannot even reach the shore or die from drowning. Anyone who manages to get to the emergency room and get the antidote will still have to endure a few weeks of great pain.

6 - Puffer fish (tropical seas)

Another very dangerous and deadly marine creature is the puffer fish. It is found in tropical seas around the world, with a high concentration in those around Japan, China and the Philippines. And the second most venomous vertebrate in the world, after the golden frog previously encountered in the ranking, but causes more deaths.

This fish produces a neurotoxin that is found in several places, namely on the skin, muscles, liver, kidneys and gonads. But the first cause of death for puffer poison is certainly not the encounter in nature: this fish is cooked and served to people in countries like Japan, with the name of Fugu. Obviously, the chefs who prepare it have undergone training and must have a license, but still many people lose their lives due to lethal indigestion.

5 - Black Mamba (Southern and Eastern Africa)

The venomous snakes in the world are different, but one is particularly lethal due to its speed: we are talking about the fearsome Black Mamba. It can reach 4 meters and is the fastest snake! Its natural habitat is the savannah, in the southern and eastern part of Africa.

It owes its name to its internal coloring of the mouth, of an intense black, which he shows just before attacking: when he feels threatened he opens his mouth as an alarm signal, the last warning before an attack. In fact, a Black Mamba attacks only when it feels threatened, but once bitten it is impossible to get out alive! Attacks quickly and quickly, inflicting multiple bites on the victim.

4 - Sea Crocodile (Indo-Pacific)

From Africa we pass to the Indo-Pacific, that is all that vast area that includes all the tropical and subtropical areas of the Indian Ocean and the western part of the Pacific Ocean. Here, throughout the territory that passes from India, to Vietnam and down south to the north of Australia, is the fearsome marine crocodile! Not to be confused with the alligator, a species that lives in Florida.

The marine crocodile is, in fact, much more threatening and aggressive, it attacks easily, even when it does not feel threatened. A male crocodile can reach 5 meters in length, weigh 1000 kg and live up to 70 years. It is very fast in both fresh and salt water and its attack is fatal, it grabs the prey with its mouth and exerts a very strong pressure from which it is practically impossible to free itself. It is responsible for many human deaths every year.

3 - Moscow Tsetse (Sub-Saharan Africa)

E' the deadliest fly in the world and is responsible for countless deaths every year! Very small in size, between 8 and 17 mm, it is found on the African continent, in the Sub-Saharan area, especially in the more central regions.

This fly carries a subtle and dangerous disease, the sleeping sickness, full name African trypanosomiasis. The disease involves joint pain, intermittent fever, swollen lymph nodes and there are heart changes. It also involves neurological changes at a later stage, such as anxiety, sweating, mood swings and more. If not treated promptly and correctly it leads to death.

2 - Mosquito (worldwide)

This position may surprise you, because the second most dangerous animal in the world is the mosquito. Very small, present in any part of the planet (except for Antarctica), it occurs mainly in hot periods, therefore in our summer. More or less, we are all continually annoyed by this tiny insect whose size ranges from 3 to 9 mm.

But why is it so dangerous? Not so much for its sting, which causes swelling and itching, but for the diseases it carries man to man. Some mosquito species, such as Aedes, Anopheles and Culex, transmit diseases such as malaria, chikungunya, yellow fever, dengue fever, Nile virus and zika virus. The best ally in the fight against mosquitoes is prevention, using repellents and all the useful equipment if you go to places where these diseases are present.

1 - Humans (worldwide)

And we arrive at the first position in the standings, where the most dangerous creature in the world is placed. Some may be amazed, others perhaps expected it: we are the most dangerous. Man is the species that kills the most every year, that has killed the most in all life on earth, and the victims include both other humans and animals.

Just think of all the wars, especially the First and Second World Wars, with a very high number of deaths. Think also of all the acts of violence that occur every day in the world. But not just direct deaths: many of our behaviors kill ourselves and all the nature that surrounds us, such as global warming, lack of care for the environment, destruction of forests, tourism that in some cases is not at all eco-sustainable and destroys already fragile ecosystems.

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