The 15 most poisonous animals in the world

Author: Laura McKinney
Date Of Creation: 6 August 2021
Update Date: 6 November 2024
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15 Most Poisonous Animals on Earth
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Have you ever wondered which is the most poisonous animal in the world? On Planet Earth there are hundreds of animals that can be lethal to man, although on many occasions we do not know the potential and effects of their poison.

Importantly, these animals considered dangerous only inject their venom if they feel threatened, as it is a waste of energy for them and also take a long time to recover, as they are vulnerable. It is important to note that poisonous animals don't attack just like that, just for some reason.

However, even being their defense mechanism, the poison can seriously affect the human body, leading to death. Therefore, we want you to continue reading this article by PeritoAnimal, to stay on top of the list of most poisonous animals in the world.


TOP 15 most poisonous animals in the world

These are the most dangerous animals in the world, counting down to the most poisonous animal in the world:

15. Brown snake
14. Death hunter scorpion
13. A viper from Gabon
12. A geographic cone snail
11. Russell's viper
10. Scorpio
9. Brown Spider
8. Black widow
7. Mamba-black
6. Blue-ringed octopus
5. Arrow frog
4. Taipan
3. Stone fish
2. Sea Serpent
1. sea wasp

Read on to learn more about each one!

15. Real snake

We can find this species in Australia, where it tends to appear more frequently and in greater quantity. Also known as brown snake, the real snake can be found among pieces of wood and in garbage. The bites of this snake are rare, but when they happen, they cause difficulties in swallowing, blurred vision, dizziness, excessive salivation, paralysis, and may even cause the death of the person bitten.


14. Death hunter scorpion

Found throughout the Middle East, especially in Palestine, the Yellow Scorpion of Palestine is also called the Death's hunter because, frequently, they look for invertebrates for their hunting. It is also known to be one of the most dangerous poisonous insects.

According to the survey published on BBC News¹, despite being only 11 cm long, its poison is quite strong. Only 0.25 mg of venom coming out of its tail and the barb that injects the toxins is capable of killing 1 kg of rats, for example.

13. Viper from Gabon

This viper can be found in greater numbers in the forests of the South of the Sahara, in the savannah of Africa, in countries like Angola, Mozambique and Guinea Bissau. are known to have a size quite considerable.


Generally, Gabon vipers can measure up to 1.80 meters in length, their teeth measure 5 cm, and have the ability to camouflage in forests near leaves and branches. Its venom can be fatal to humans and other animals.

12. Geographic cone snail

The snail is among the most dangerous animals in the world for, despite his slowness, he can react with his venom when he feels threatened. It is carnivorous and feeds on fish or worms.

The cone snail's teeth are very sharp and work like “killer cutlery” because, with their teeth, they manage to trap fish and their toxins poison them, leaving them paralyzed and facilitating their digestion. Its venom can have a devastating effect on humans, as it acts directly on the nervous system leading to death if there is no immediate medical assistance.

11. Russell's Viper

In Asia, this species of snake has been killing thousands of people. It's not the most poisonous animal in the world, but people who are bitten by the viper have terrible symptoms and may die. They may have problems with blood clotting, severe pain, dizziness and even kidney failure.

Its size reaches 1.80 meters and, due to its considerable size, it can grab any prey and apply its murderous bite. A bite of these species alone can contain up to 112 mg of venom.

10. Common Scorpion

In the tenth position we find the familiar common scorpion. There are more than 1400 species distributed all over the world, as they usually adapt perfectly to different climates and different types of food.

Due to the fact that they are an easy target for owls, lizards or snakes, the scorpions have developed several defense mechanisms, although the most striking is the sting. Most do not involve a risk to humans, however, those belonging to the family Buthidae, as well as the Yellow Scorpion, which is from the same family, are in the list of the most poisonous animals in the world.

9. Brown Spider

At post number nine, we find the brown spider or violin spider as one of the 15 most poisonous animals in the world.

Also known as loxosceles laeta this spider can be deadly, depending on its individual's weight. Its venom works by dissolving skin tissue while causing cell death that can end up in the amputation of some human organ. The effect is 10 times more powerful than sulfuric acid.

What can you do after a brown spider bite?

  • Apply ice to the wound as this slows down the penetration of the poison.
  • Don't move too much, call an ambulance.
  • Wash the chopped area with soapy water.

8. Black widow

The famous black Widow appears in place number eight on the list, being one of the most venomous spiders in Brazil. Its name comes from the particular cannibalism of its species, as the female eats the male after mating.

The black widow spider is the most dangerous to humans, especially the female. To find out if the spider is female, just check if it has the red marks that decorate its body. The effects of its bite can be serious and even deadly, if the person bitten does not go to a medical center to receive proper treatment.

Also meet the Sydney spider, considered the most venomous in the world.

7. Mamba-black

The Black Mamba is a snake that became well known after its appearance in the film “Kill Bill” by Quentin Tarantino. She is considered the most venomous snake in the world and their skin color can vary between green and metallic gray. It's very fast and territorial. Before attacking, make warning sounds. Its bite injects about 100 milligrams of poison, 15 milligrams of which are already lethal to any human being.

6. Blue-ringed octopus

Your rings are already a hint of how poisonous this animal can be. The Blue-ringed Octopus is the most dangerous cephalopod on earth, as it there is no antidote for your poison. This poison is enough to take the lives of 26 people. Despite being very small in size, they apply a powerful and deadly poison.

5. Arrow frog

The arrow frog also known as poison dart frog. It is considered the most poisonous amphibian on Planet Earth, as it produces poison capable of killing 1500 people. In the past, natives wet their arrowheads with the poison, which made them even more lethal.

4. Taipan

The effects that the taipan snake produces are impressive, being able to kill 100 adults, as well as 250,000 rats. Its poison is between 200 to 400 times more toxic than most rattlesnakes.

The neurotoxic action means that Taipan can kill an adult human in just 45 minutes. In these cases, the medical help is something primordial right after your bite.

3. Stonefish

The stone fish is of the class actinopterygii, considered one of the most poisonous animals in the world. Its name comes precisely from its appearance, similar to a rock. Contact with the spines of its fins is deadly for humans, since its venom is similar to that of a snake. The pain is very intense and distressing.

2. Sea Serpent

The sea serpent is present in any sea on Planet Earth, and the your poison is the most harmful of all snakes. It surpasses between 2 to 10 times that of a snake and its bite is lethal for any human being.

1. sea wasp

The sea wasp is, without a doubt, the most poisonous animal in the world! It lives mainly in the sea near Australia and may have tentacles up to 3 meters in length. As it ages, its poison becomes more lethal, being able to kill a person in just 3 minutes.

If you want to read more articles similar to The 15 most poisonous animals in the world, we recommend that you enter our Curiosities section of the animal world.

References

1. BBC Earth. "One animal is more venomous than any other”. Accessed December 16, 2019. Available at: http://www.bbc.com/earth/story/20151022-one-animal-is-more-venomous-than-any-other