The piranhas of the Amazon are so ferocious, do they dare to attack crocodiles?

In film and television pictures, we can often see that in the dangerous Amazon jungle, where there is water, especially after the Amazon jungle enters the rainy season, there are groups of wolves in the water"Piranhas"It will swim demonically in any body of water where humans or animals may appear. Once a person or animal is injured, they will immediately be attacked by these water devils, and within a few minutes they will be eaten into skeletons, cruel and undisciplined.

Piranha is also called piranha, bila fish, piranha, etc., belongs to a kind of piranha, there are 56 species of pirania, according to the feeding habits are divided into omnivorous piranha pomfret and carnivorous piranha pomfret, adult fish are mostly between 20 and 30 cm.

The man-eating pomfret of the Amazonian piranha.

Piranhas are listed as one of the four most dangerous aquarium animals in the Amazon basin, and 1,200 cattle are eaten every year in the state of Basir Gema Bagrosso, where piranhas are most active, and children playing in the water and women washing clothes have also been attacked. When herders in the Amazon River drive cattle across the river, they will first drive a sick cow into the water when they encounter a river with piranhas, use the strategy of diverting the tiger from the mountain to lure the piranha away, and after paying the protection fee, they will drive the cattle across the river from the other side. As for the old cow, of course, it will soon be a pile of white bones.

Piranhas in the Amazon Basin.

The piranha teeth are triangular, sharp and sharp, staggered up and down, and after biting the animal, it can tear off the prey meat by twisting its body, and it can bite off 16 cubic centimeters of meat in one bite, and the alternating replacement of teeth can ensure that it continues to tear. There is a head fish in each group, and the rest of the fish follow the leader closely in both the attack and daily activities, and the fish group is more democratic. Schools of piranhas vary in size, from hundreds to thousands to dozens.

When the dry season comes, the water is very small, and the fish come together to attack the animals in the water, which is what we see in the movie. Physical attacks are mainly caused by the smell of blood, noise and splashes after the injured animal stirs the water surface.

Piranhas have very poor eyesight and can only see within one meter, while when the rainy season arrives in the Amazon Basin, the river water is particularly turbid, and piranhas can only see 25 centimeters in front of them, except for their sense of hearing and smell, they are almost no different from being blind.

Many fish also secretly eat piranha eggs. Another feared parasitic fish in the Amazon, the toothpick fish, also often parasitizes piranhas, spawning in their bodies, or eating dried guts. In front of these countless natural enemies, the piranha is like a poor worm, weak and explosive.

The top hunter who walks sideways in the Amazon River, the piranha dare not provoke, the natural enemy of the crocodile.

Can't. Because crocodiles' ** is very strong, piranhas can't bite, so they don't dare to attack crocodiles.

<> "Why the Cruel and Fierce Piranha Didn't Dominate the Amazon River."

One of the reasons why piranhas do not dominate the Amazon has a lot to do with their "personality". In fact, piranhas are timid by nature, and only choose to attack the same target when there are many of their kind. Some experts have experimented that if a single piranha is put in a bathtub, it will immediately hide in a corner, and will not actively attack other fish in the tank.

It can be seen that piranhas are not as aggressive as they imagined, unless they have injuries on their bodies and are smelled of blood by piranhas, they do not attack animals when they see them.

The low survival rate of piranhas is also one of the reasons why they cannot "dominate" the Amazon River. While a female piranha can lay thousands of eggs during the breeding season, its spawning season coincides with the rainy season in the Amazon. The Amazon River is the world's largest river, and most of the eggs are washed up on the banks of the river to lose their hatching environment, resulting in the inability to hatch into juveniles.

As a result, the population density of piranhas in the Amazon is not large.

In addition, piranhas are not the absolute "overlords" of the Amazon River, and they also have natural predators in the Amazon River. The fish of the Amazon have evolved their own unique skills to "deal with" the ferocious piranhas. For example, the number one enemy of piranhas, the electric eel.

The electric current released by the electric eel can instantly electrocute a whole group of piranhas, and then the electric eel can eat a beautiful piranha feast.

In addition, there is a fierce fish in the Amazon River, and the first thing to tell is the spiny catfish. When the catfish encounters a piranha, it will immediately swim underneath the piranha and swim with the piranha. If a piranha wants to attack a catfish, the catfish will leak out the spikes above its body.

Helpless in the face of the sharp and poisonous slag spiky piranha, if you force an attack, you will often be seriously injured, but you will be eaten by the catfish. And on the Amazon River "killer" list, the spiny catfish is at the top of the list, and the piranha can only be ranked fourth.

Moreover, the South American giant otter is a master of fishing, and the piranha is limited by its size, which causes it to swim very slowly, so it is very easy for the South American giant otter to catch piranhas as food. In addition, the highly venomous puffer fish and the equally predatory cormorant are also natural enemies of piranhas. As the saying goes, "big fish eat small fish", those fish that are larger than piranhas also often prey on piranhas.

These are the reasons why piranhas cannot dominate the Amazon River.

The shape of piranhas' teeth is usually triangular with a sharp and sharp middle. The upper and lower jaws have a row of these teeth, which are closely arranged and fit perfectly between the upper and lower teeth for quick puncture cuts. Not only that, but its bite power is also amazing.

Studies have shown that the black piranhas in piranhas can produce 30 times more bite force thanks to their oversized jaw muscles. Compared to the body size, this bite force is better than that of Tyrannosaurus rex and megalodon. Many piranhas live in groups, relying on large numbers of people, and they are also extremely ferocious.

Once you bite your prey, constantly twisting your body, it's easy to tear the meat off your prey and bite off 16 cubic centimeters of meat. Of course, it's easy to turn your prey into white bones. But there is one thing that needs to be refuted, the legend says that a cow was ossified in a few seconds, which is impossible.

Scientists have made a professional judgment on this, believing that a cow should turn into white bones in five minutes, and at least 300-500 piranhas should attack at the same time, but in the wild, such a large number of piranhas is rare. Piranhas are a large family, some live in groups, some prefer to live alone, some eat meat, and some eat vegetarian. Most of the attacks are caused by red-bellied piranhas, which live in groups, and other piranhas are gentle and timid.

In general, carnivorous piranhas either eat small fish or mammals, or carrion, and are not easy to attack living creatures. Scientist Dr. Axelrod was once in the same pool as the piranha, but the piranha did not attack him. Even when he feeds food, piranhas only attack food and not living people.

Piranha refers not only to a certain type of fish, but also to carnivorous fish under the family Saw Carp. At least 35 species of fish qualify as piranhas. However, in a narrow sense, piranhas only refer to red-bellied piranhas, as piranhas were originally written by former American ** Roosevelt after crossing the Brazilian rainforest.

In his description, there is a typical example of this ferocious carnivorous fish "red belly". The scientific name of the red-bellied piranha is the fish of the family Saw Carp. Its most distinctive feature is its bright red abdomen, short and thick body, with an average body length of about 17 cm, and jagged sharp teeth.

Previous descriptions of piranhas have mostly been exaggerated, generally speaking, "blowing to the sky", in fact, real piranhas are timid and cautious. Since the 20th century, there have been no less than 5 scientific experiments.

Because it has more than 30 species and can reach a body length of up to 30 centimeters, the main reason why he did not dominate was that it was stopped by the food chain, and the piranha's anti-wild ability was not good, and under the economic influence of the harsh environment of the Amazon, it caused certain restrictions on the expansion of his population.

Because there will be electric eels in the Amazon River, and the creatures that piranhas are most afraid of are electric eels, which will release a very large electric current in the water, which will cause very lethal damage to the creatures.

Broadly speaking, piranhas do not refer to a single type of fish, but to carnivorous fish under the family Sawfatidae, and there are at least 35 species of fish that meet the conditions of piranhas.

Why piranhas don't dominate the Amazon River, we don't know, but piranhas are very timid and hide behind aquatic weeds and corals. In addition, electric eels and giant arapaima eat piranhas as cows in the Amazon, so don't be fooled by appearances.

In the Amazon basin, experienced shepherds are engaged in grazing, they avoid rivers with predators, and when they have to cross these rivers for any reason, herders drive sick cows into the water and then drive the rest of the cows across the river. For the shepherd to "drive the tiger out of the mountains", success depends on speed, and he must cross all the cattle across the river in a matter of minutes, because in less than 10 minutes a predator can tear off the head like the prey of a cow, getting only one piece of fragment.

<> piranhas can also be called tiger fish, piranhas, freshwater pumps, etc. They are ferocious predatory fish that inhabit the tropical freshwaters of the Amazon, the most ferocious of which are flocks and oral structures. Predators have more developed upper jaws, have fangs, have fangs, but together with fangs, the threat is relatively large, you can easily take the next piece out of the animal meat, it is easy to bite the jar, but this carnivore is not much of a threat to live animals, because their bodies are still relatively small, and one person stands and eats it to take revenge for death, and many more, in order to inflict some damage on the vast rainforest of northern South America, a river flows through, and it is the largest and most flowing catchment area in the world, for a long time, where many ancient civilizations were born, known to the world as the Amazon.

The Amazon River has a flow of up to 219,000 cubic meters per second and covers an area of 6,915,000 square kilometers. With so much water, the Amazon is blessed with a rich biodiversity, including cold-blooded killers, of which the Predator is one.

Cattle will be eaten after a few minutes if they fall into the river, and a group of people will float in the water, and the river will soon turn red; The Amazon is inhabited by a ferocious fish known as the "underwater wolf", which is made up of more than a dozen species ranging from 15 cm to 50 cm, which are carnivorous or hybrid freshwater fish with sharp teeth. We usually call it piranha, the full name is pyramid, it is a kind of water tiger, the main habit is to eat meat, even people eat, so it is called predator fish. But abandon this very popular name, predator, and eat the fangfish for meat.

Of course, such fish species are certainly not uncommon, so do not exaggerate the myth of predators.

Piranhas are very timid and hunt in groups. Don't take the initiative to provoke. There is no desire to attack.

And this fish is very fragile and very sensitive to temperature. If the water quality changes greatly, the piranhas will die faster. And there are many natural predators, and fish larger than him can prey on piranhas.

And piranhas are not apex predators in the Amazon.

Although he is very fierce, this is because his combat effectiveness is not strong, and his breeding success rate is not high, there are not too many of them, and there are still a lot of animals in the Amazon River, which are more ferocious and powerful than piranhas.

Because although the piranha is terrifying, its own limitation is that its attacks are not always successful, and piranhas also have natural predators.

Because piranhas also have natural predators. Despite its ferocity, the piranha is small in the face of its predators.

Because there are creatures that are more powerful than piranhas, and piranhas are relatively timid.

The name piranha sounds terrifying, this fish is a fish endemic to the Amazon rivers, and there have been frequent incidents of piranhas attacking people in previous news, resulting in injuries. This fish is a carnivore, and if it smells blood somewhere in the river, it will come in droves of piranhas and be able to eat an entire cow in 10 minutes. The reason why piranhas are so terrible that they do not develop and exist in the Amazon is because this fish also has natural predators and has very strict requirements for the growth environment.

Although the piranha is a very ferocious animal, it also has its own shortcomings, these fish cannot be touched individually, and must be absolutely attacked together, if you attack others alone, the ability is very poor. This fish is shaped like a large cake, so when swimming in the water, it is slower than other fish, and this slow speed is not able to avoid the attacks of natural predators. And the piranha's eyesight is still very poor, and it can only see things within one meter When the Amazon rivers usher in the rainy season, the river will flood, and the water quality will become more turbid, and at this time, the piranha can only see about 25 centimeters, so it is difficult to hit anything beyond this range.

Although raw fish is very tough, there are also many opponents, and there are also natural predators in nature, such as electric eels, spiny catfish and otters. In addition, birds such as crocodiles, egrets, and herons will also come to prey on piranhas, so it is difficult for piranhas to flood under so many natural predators. <>

In fact, in the process of growth, fish do not say that they do not pick the water quality, but they have high requirements for the environment, they like weak acidic soft water, and the best water temperature is between 22 and 28, so that they can survive better. If the temperature in the area is below 20, the metabolism of the piranha will slow down, and if it is below 15, the piranha will become very sluggish, and it will not be able to survive at all after a long time. So whenever winter comes, piranhas can be in danger of their lives.