12 Most Aggressive Animals in the World That are Downright Deadly

Here are the most aggressive animals from around the world. The list includes animals that are said to be friendly but are not afraid of humans and can attack them if threatened.

3 weeks ago
12 Most Aggressive Animals in the World That are Downright Deadly

So, are you afraid of animals? While several animals are cute and are the best companions, others are dangerous to own as a pet. Contrary to what you believe that animals are loyal and mischievous, many animals in the world are aggressive and known for being vicious.

If threatened, animals can kill humans or severely injure them. Just like wild animals are known to be dangerous, and nobody could think of owning them as pets. Several animals from around the world are known for their ferocious nature. But exceptions are there, and these wild animals can give you a good company.

If you are an animal lover, then you should know about the animals that can harm or attack you anytime. So, below are a few most aggressive animals from around the world that are downright deadly.

1. Cassowaries

Source = Animals

The cassowary is considered one of the most dangerous birds in the world. If it is provoked, it becomes aggressive and attacks viciously. Cassowaries’ sharp claws and legs are the most powerful weapons. It mainly feeds on fruits and is omnivorous. The cassowary is the earth’s second-heaviest bird.

The dwarf cassowary is the smallest and has a height of around 3 feet. They are good jumpers and can jump 7 feet off the ground. Besides being a good jumper, they are great swimmers and can run with a speed of 30 miles per hour.

You would be surprised to know that Cassowaries can eat their poop. With their claws, they can break human bones and could make their condition critical. Cassowaries can be found in the rainforests of New Guinea and northeastern Australia. They have dangerous feet and are known for breaking human bones.

Male Cassowary never leaves its nest alone. After female Cassowary delivers babies, the male spends the next 8-9 months defending its babies. They resemble ostriches and kiwis.

2. Cape Buffalo

Source = Senalala

Cape Buffalo is also known as the black death. Do you know why it is called so? It is one of the most aggressive animals in South Africa responsible for several fatal attacks. When attacked, this large animal could attack anything, even bigger animals like lions.

A cape buffalo weighs a ton and stands 6 feet high. They are heavier than cows and have a broad shield covering its head. The Cape buffalo or African buffalo have thick horns and move in herds to graze.

According to reports, Cape buffalo kills around 200 people every year. They don’t care if they are injured or not;  they continue to attack their predators.

Cape Buffalo can be found in open woodland and require water daily, so it depends on different sources of water. They have smooth tongues and are four times stronger than an Ox.

3. Geese

Source = Cbc

You might be shocked to see Geese’s name in the list of most aggressive animals. But it is true. Geese look friendly, but they are not. Geese can see ultraviolet light and therefore have superior vision than humans. They can sense predators from a long distance. Geese know where their home is and defend it, especially during hatching season.

Canada Geese are known to be mean and also reported to break down human bones and biting. Geese are protecting parents and don’t let anyone mess with their kids. Not every goose migrates, some stay at the same place for a year. They can live anywhere in parks, grassy areas, and water. They feed on nuts, berries, and grass.

Do you know geese fly in V direction? Also, they are very supportive. If any geese from their flock get hurt or injured, others stay with it until it can rejoin the flock. Geese become aggressive if they believe that their kids are threatened.

4. Wolverine

Source = Nature

The Wolverine or skunk bear can be found in the Northern boreal forests and alpine tundra of the Northern Hemisphere. It is a muscular carnivore and resembles a small bear. But is the largest land-dwelling species of the family Mustelidae. It has short legs, small eyes, and a rounded head.

If threatened, they can defend large animals like wolves and bears. Their teeth are large, and jaws are powerful, which shows their level of aggression. Wolverines have an excellent sense of hearing but have poor eyesight.

They usually attack small animals like rabbits and rodents but can also attack animals of their size like Caribou. They eat plants, berries, seeds, and insect larvae. They are very quick and can run at a speed of 50kms per hour. You wouldn’t know that this aggressive animal can also swim if needed.

You are probably wrong if you think wolverine is the only dangerous animal in Russia. Here are more Russian animals that are beautiful and dangerous at the same time.

5. Saltwater Crocodile

Source = Ourplnt

Saltwater Crocodile is one of the most aggressive animals in the world. It is very short-tempered and becomes aggressive to anything that crosses its path. Saltwater crocodiles can be found in Vietnam and different parts of the Indo-Pacific region. It can grow up to 22-23 feet in length and weighs a ton.

Saltwater crocodiles have the record of the most powerful bite. They have a long lifespan of around 65 years. It can feed on anything, including sharks and even monkeys. Not only animals, but crocodiles can also attack humans. Here are the most lethal crocodile attacks ever recorded.

It is believed that crocodiles sleep with one eye open. According to scientists, the central nervous system of crocodiles is designed in such a way that when its left side of the brain is awake, its right side remains open and vice-versa. They are the best swimmers and can swim around 900-1000kms. Other than the saltwater crocodile, animals like Pacific Viperfish and Coffinfish are also considered as the most dangerous predators of the sea.

6. Hippopotamus

Source = Saturdayeveningpost

The hippopotamus is herbivores but considered to be dangerous because of its aggressive nature. Male Hippos are larger than females and have a record of measuring 5.2meters and 5000kg weight. They can travel up to 10-15kms on land to feed.

Hippos are active during the night and can consume 70kgs of grass at night. They usually live in groups and are led by one dominant male. Its sharp teeth are used for fighting. Hippos are great swimmers and can hold their breath for 5-7 minutes underwater. They spend most of their time in the water in lakes and rivers.

Hippos have their nose, eyes, and ears located on the top of their heads, which means they can see and breathe even when they are underwater. The most amazing fact about Hippopotamus is it sweats red oily liquid that protects its skin from drying out.

Owning a pet is not always a good idea. You will be shocked to know, but several pets are responsible for their owner's death.

7. Mustelids

Source = Thesafariworld

Another most aggressive animal on the list is Mustelids. They vary in size and behavior. They are small in size with round ears, short legs, and thick fur.

They hunt their prey from behind and bite them on the nape with their sharp teeth. They do not stop attacking until their prey doesn’t bleed and dies. This animal of the animal kingdom is ferocious and kill small bodies.

The ferret, one kind of mustelid, has been used and tamed for hunting for a long time. However, nowadays, it is also kept as a pet. They can be found everywhere on the earth except Australia and neighboring islands.

8. Wild Boar

Source = Nydailynews

Wild Boar or wild pig is native to the Greater Sunda Islands and North Africa. They are medium-sized animals and 22 to 32 inches in height and weigh up to 700 pounds.

Wild Boars are covered with the double coat of fur that can be range from red to brown and black to grey. It is omnivores and mainly feeds on lizards, fruits, leaves, eggs, and snakes. They are active at night and sleep around 12-13 hours in their nest made of leaves.

Wild Boar have sharp tusks which are used to injure prey. They are violent and can survive ten years in the wild and 25 years in captivity.

Young wild boars depend on their mother for their survival, but as they turn 7-8 months old, they become completely independent. The mating season for wild boars starts from November to January.

9. Black Mamba

Source = Earthtouchnews

Black Mamba is known as the most aggressive animals in the world because of two reasons. The venom of the Black Mamba can kill a human in a short time. It can move at a speed of 13 miles per hour, making it difficult for prey to run.

The Black Mamba is brown. It got its name from the blue-black insides of its mouth, which is observed when it's threatened. It is widely considered as the deadliest snake in the world. The black mamba is shy and avoids confronting. But when disturbed, it raises its head and spread its cobra-like neck-flap and hiss.

Thankfully, it bites only when threatened, but when it bites, it does so repeatedly and kills its prey. It is terrestrial and arboreal and can be found on rocky slopes, dense forests, and woodland. They have a coffin-shaped head and measure around 8 feet. This aggressive animal can live up to 11-12 years in the wild.

10. Tasmanian Devil

Source = Telegraph

Tasmanian Devil is the largest carnivorous mammal in the world. This black creature is found only on the island state of Tasmania. It is known to have a fierce temper.

The amazing fact about Tasmanian Devil is its awful smell. It releases an awful odor when stressed and also to get rid of the danger. It usually does not attack humans, but also does not hesitate to fight with them to defend. They are aggressive and have powerful jaws to bite.

When disturbed or threatened, they frighten anyone by showing their teeth and with loud screeching. They feed on birds, insects, fish, and snakes. They are nocturnal and spend their time alone in caves or burrows and came out in the night. They have an excellent sense of smell and use it to avoid predators and find prey.

11. Bull Shark

Source = Oceana

Humans are scared of sharks. The Bull Shark, or better known as the Zambezi shark in Africa, is known for its aggressive nature.

Large-sized bull sharks are recorded to attack most humans near the shore. It is known by several names like cub shark, Fitzroy Cree Whaler, river shark, and more. Bull Sharks are mainly found in coastal areas of warm oceans, lakes, and freshwater streams.

Female bull sharks are heavier but shorter than males. They have white bellies and grey back. Normally, it swims up to 5 miles per hour but can accelerate to 12 miles per hour if needed. They feed on small fish, sharks and stingrays. People hunt bull sharks for oil, meat, and skin.

Besides Bull Sharks, here are the other largest sharks existing on the earth. Before you step into the ocean to see sharks, read these deadly shark attacks that might change your mind.

12. Eastern Brown Snake

Source = Australianmuseum

Golden Lancehead Viper is considered the most dangerous snake from Brazil. Eastern Brown snake native to southern New Guinea is highly venomous and aggressive.

They are fast-moving snakes and hunt during the day. They are usually brown or orange but can be found in different colors like darker brown and black.

The bite of the Eastern brown snake can kill a human. The symptoms of the eastern brown snake bite may include cardiac arrest, dizziness, paralysis, and diarrhea. If you have Ophidiophobia, here are several ways on how you can overcome the fear of snakes.

Final Words

These animals might be aggressive, but several animals on the earth can change their color to hide from predators and to attack their prey. What do you think which animal is more dangerous - camouflaged or aggressive?

Do you know other animals that are aggressive and can attack humans? If so, share them with us below.

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