Stranger danger

What is the deadliest animal on the planet? The answer will shock you!

When we think of the most dangerous species of the animal kingdom, the first things that come to mind are snakes, sharks, and crocodiles. While these animals are sometimes lethal to humans, others are even more so. Read on to discover 12 of the world's most terrifying animals. Some of them will probably shock you!

Hippos can be as adorable as they are dangerous. They love water and spend up to two-thirds of their day submerged in rivers and swamps in central and southern sub-Saharan Africa. But behind that gentle, easy-going image lies one of the most aggressive species —even more so than lions and rhinos— killing up to 500 people a year.

With long tusks, strong jaws, and a weight that can reach 5,000 lb, they do not hesitate to confront any species when it comes to guarding their territory. Although they may seem somewhat lazy, they are fast, strong, and territorial. So be respectful and do not disturb their habitat!

There are many dangerous snakes in the world, but the one you should be more cautious about is the Taipan. The inland Taipan, a species endemic to Australia and New Guinea, has the most lethal toxins, and its bite can kill a person in just 45 minutes. Fortunately, there is an antidote to counteract its venom!

This species and others as dangerous as the Black Mamba and the King Cobra are responsible for the death of no less than 80,000 to 130,000 people per year globally.

There are more than 350 species of sharks, but only three are responsible for the highest percentage of attacks on humans: the great white shark, the tiger shark, and the bull shark. Although sharks are dangerous, they are not the most lethal animal for humans. In the last century, there has been an average of only 6 fatal attacks per year, with Australia having the highest number of incidents.

As a matter of fact, despite their reputation as vicious predators in movies, they are often the victims. Sharks are heavily hunted for their skin, fins, meat, and even their organs.

This predatory arachnid arthropod is another of the most dangerous animals for humans: it kills approximately 5,000 people per year worldwide. Scorpions can live in a variety of habitats, from deserts to urban areas, and it’s common to find them under rocks, in crevices, or in construction debris.

However, of the more than 1,000 venomous scorpion species, only about 25 can be deadly to humans. The most venomous scorpion is the thick-tailed scorpion, responsible for 90% of the deaths caused by scorpion attacks in Africa.

In general, bees aren’t violent, but they should be treated with the utmost respect and care since they tend to act in self-defense. When they sting, they can cause anything from a minor injury to acute poisoning if the attack occurs on a person allergic to their venom.

The Apis mellifera scutellata (Africanized honey bee) are among the most fearsome because they act in swarms: although they attack only if provoked, their defense mechanism is so aggressive that they do not stop until they catch and sometimes kill their prey. In the United States alone, between 50 and 100 people die each year as victims of bee attacks.

Despite being carnivores and eating any animal they come across to satisfy their hunger, they kill far fewer people in the world than one might expect. In Tanzania, the birthplace of the African lion, about 22 humans die each year attacked by these animals and it is estimated that there are no more than 100 victims worldwide.

Not that lions are not to be feared: they attack in groups, are capable of running at a speed of 46.0 mph, and can digest 66 lb of meat in a single meal with their sharp teeth and particular claws. So, beware!

Although it’s not in their nature to attack their prey, jellyfish can be dangerous to humans. If you accidentally touch one while swimming, you will be stung and its tentacles will immediately release venom, in many cases even if the animal is dead.

Some species, such as the box jellyfish —found in Australia, the Philippines, and other tropical areas—, are the most lethal. They send out toxic stingers capable of stopping a person's heart in less than five minutes. Jellyfish stings affect hundreds of thousands of humans globally, and numbers indicate that up to 100 of those are fatal. Believe it or not, the smallest are the most poisonous!

Like most animals, spiders will attack only if they feel in danger. If they bite, many pose no threat to humans other than mild swelling or a rash. Others, however, carry deadly venom, such as the Brown Widow, the Red Widow, the Redback, and the Funnel-web spiders.

Fortunately, there are effective antidotes for almost all spider bites. Yet, at least 50 people die worldwide each year, 7 of them in the United States.

These ancient animals are the largest reptiles in the world —they can be up to 20 feet long and weigh over 2,200 lbs. Their powerful jaws and high-action speed make them terrifying to their prey, including humans.

The most dangerous are the saltwater species, abundant in swampy areas of Southeast Asia, northern Australia, and Africa. Saltwater crocodiles are responsible for at least 1,000 deaths annually, the highest number of victims for a large animal.

Did you know that there is a species of ant that releases a poison even more powerful than arsenic or cyanide? The bulldog ant, considered the most dangerous ant in the world, is solitary and aggressive. It lives in parts of Australia, and if it feels threatened, it can cling to its prey with its jaws and sting simultaneously, killing an adult in just 15 minutes.

Another ant to watch out for is the Siafu ant, also known as the army ant. Known for having larger mandibles than most insects of its size, it is found in West Africa and the Congo. This species of ant attacks in groups and can devour an animal a thousand times bigger than their size.

Although it may sound strange, man's best friend is the third-deadliest animal to humans. While deaths from dog attacks are uncommon, a bite from these animals can transmit a lethal disease.

According to the World Health Organization (WHO), 59,000 people die each year worldwide from rabies —95% of them in Asia and Africa— a virus transmitted by the saliva of unvaccinated dogs.

When you think of the most lethal animal to humans, what comes to mind? Perhaps a shark or any of the venomous creatures listed in this article, such as snakes and scorpions. Well, you’d be wrong. According to the U.S. Centers for Disease Control and Prevention (CDC), the animal that threatens human life the most is none other than the mosquito.

Yes, this slender, long-legged little insect, whose buzzing sound is one of the most annoying sounds in the world, is the deadliest animal on the planet. Why? Because mosquitoes are vectors of many dangerous diseases, such as malaria and dengue fever. According to the WHO, mosquito-borne diseases cause some 700,000 deaths a year.

Facts you didn't know you needed

Is the day longer for your pet? Mind-blowing facts you need to know

Adults often assume they already understand the world, but there’s always something new to surprise us! Did you know that clouds actually have weight? Or that the day is longer for some animals? And that’s just the beginning. From hidden functions of your organs to the true color of the universe, today you’ll learn 10 fascinating facts you probably never thought to ask, but will make you sound impressively smart in your next conversation!

Unlike humans, animals don’t experience a shared "present" in quite the same way. Instead, their sense of time is tied to the rhythms of their own bodies. For very small animals with fast metabolisms like parrots, hamsters, or guinea pigs, time actually seems to pass more slowly. In a sense, they live in slow motion because their faster-working nervous systems allow them to process sensory information at a fast speed.

What if someone commits a crime and tries to blame their identical twin? Have you ever wondered about that? It’s a valid question; after all, identical twins not only look alike, they also share the same DNA. But here’s the surprising part: if investigators check fingerprints, the innocent twin could be cleared. That’s because, despite their nearly identical DNA, twins have unique fingerprints, shaped by subtle genetic and environmental factors in the womb.

You’ve probably spent time lying on the grass, watching clouds drift across the sky. They look light, fluffy, almost like cotton candy, and it’s hard to imagine them as heavy objects. But the truth is surprising: clouds are incredibly heavy. An average cumulus cloud can weigh around 1 million pounds! That impressive weight comes from the billions of tiny water droplets suspended in the air. So, how do they float? It’s because each droplet is extremely small and falls very slowly, while rising warm air currents help keep the cloud suspended above us.

Most of us have a rough image of the world map in our minds. But we have something to tell you: most maps aren’t completely accurate. Because the Earth is a sphere, cartographers have to distort some areas to represent it on a flat surface. On Mercator projection maps, countries near the poles appear much larger than they really are, while countries near the equator look smaller in comparison. For example, Alaska looks about the same size as Brazil, but in reality, Brazil is nearly five times larger!

Most people don’t realize that there’s actually a name for the color of the universe. Strange, right? But it’s true! Astronomers who studied the light from thousands of galaxies discovered that if you blend all the colors from the observable universe, the result is a soft, beige-ish white shade, famously named "Cosmic Latte" in 2002.

With 50 states, there’s no shortage of variety in their names. Almost every letter of the English alphabet appears at least once, except for one: Q, which is completely absent. In addition to this, there’s another surprisingly rare letter: J. While it isn’t entirely missing like Q, it only appears in one state, New Jersey.

Although we don’t notice it, indeed, the Earth’s rotation is gradually slowing. This happens because tidal friction, caused by the Moon’s gravitational pull on our oceans, creates a subtle drag on the planet’s spin. As a result, days are getting longer, but very gradually: by only about 1.7 milliseconds per century.

Do you remember your last dream? Whether good or bad, dreams are a constant part of sleep, but not everyone experiences them in the same way. Deaf people who use sign language in their daily lives often communicate through signs in their dreams, too. Meanwhile, blind people tend to have dreams rich in sounds, smells, and tactile sensations, using these other senses to experience the dream world.

We’re used to seeing hippos covered in mud, splashing in water, or barely peeking above the surface. But here’s a surprise: hippos can’t actually swim! That’s right. Because of their huge, heavy bodies, they don’t float or paddle like most animals. Instead, they walk or run along the riverbed.

Can your brain really "eat" itself? Well, close, but not exactly. There’s a process called phagocytosis, carried out by specialized immune cells in the brain known as microglia. These cells engulf and remove debris, dead cells, and other unwanted material. But don’t worry; it’s safe! The mechanisms exist to protect, repair, and maintain your brain.