How terrible is the Amazon River? Why doesn't anyone dare to swim, let alone cross the bridge?

If you don't know much about the Amazon River, let's look at some data first. It is the second longest river in the world, but its runoff is the highest in the world. The total number of tributaries exceeds 1000, and the basin area is as high as 7 million square kilometers, accounting for 40% of the whole South America and 20% of all rivers in the world!

But the following facts are a little confusing. No bridge dares to cross the Amazon river, and swimming in the Amazon river has to risk your life. What is this?

Why doesn't a bridge dare to cross the Amazon River?

Amazon rainforest is the largest tropical rainforest in the world, covering an area of over 5.5 million square kilometers, spanning nine countries, accounting for half of the world's rainforests and 20% of the global forest area. It is the region with the richest biological species on the earth, so it is known as the lung of the earth!

Amazon rainforest has rainy season and dry season, but it is not the dry season of African grassland you think, but the season with relatively little rain. Generally, May-10 is the dry season of Amazon rainforest, and the rainy season starts from 1 10 to April of the following year!

A large amount of rainwater is collected into the Amazon River through thousands of tributaries. Of course, the dry season will not stop, but the water level is lower than the rainy season, so the water level in the dry season and the rainy season of the Amazon River is very different.

In the rainy season, the Amazon River rises, with an average depth of 40 meters and a width of more than 38 kilometers. When it reached the estuary, the river was hundreds of kilometers wide. Even in the dry season, the width of Xingu River, a tributary of the Amazon River, is 13 km, but in the rainy season, it is 56 km wide!

So the buildings near the Amazon River are high-rise residential buildings. If the house is built according to the water level in the dry season, it will be flooded in the rainy season.

It's too expensive to build a bridge over the Amazon River.

In fact, it's not that the Amazon River can't be built, but that its river course has changed a lot, the length of the bridge is too exaggerated, it's extremely difficult to build the bridge, and the cost is too high. If the Amazon River is in China, it will definitely be built on it for the sake of economic development.

Hangzhou bay bridge

But Brazil has no urgency to connect the north and the south at all, so ferries have been occupying cross-river transportation until now. After all, this is cheaper and more flexible!

Negro River Bridge

Of course, some people will say that there is a bridge on the Amazon River, and there is, but it is the Negro River Bridge. As can be seen from the name, it is not on the Amazon River, but it is a tributary of the Amazon River.

Why did you risk your life to swim in the Amazon River?

What are we most afraid of when swimming in Shantang Reservoir or river? Just a leech. This disgusting creature stares at people and sucks blood. You can stretch it when you pull it, and your hair will stand up. But aren't we still swimming in the water?

What are the dangers of the Amazon River?

There are many threats from the Amazon river. There are too many strange things in the rain forest river. Only we know of the following threats:

1, piranha

2. Black caiman

3. electric eel

4, drilling JJ fish: toothpick fish

5. Bull shark

6.green python

Among these threats from underwater, piranha is the fiercest. This kind of fish is actually very timid, but once attacked, hundreds of them rush to bite together. In just a few minutes, the prey was bitten to the bone, which was really terrible!

There are crocodiles and bull sharks, not to mention. This crocodile, which looks like deadwood, was so threatening that it suddenly rushed out. Even if you don't bite, you will scare a heart attack. Bull sharks can stay in fresh water for a long time, so their threat cannot be underestimated.

What is worth mentioning is the electric eel. There are also electric eels in Africa. It is said that the power of the electric eel in Amazon River is slightly weaker than that in Africa, but its instantaneous voltage is as high as 300 ~ 800 V. However, this kind of electricity does not kill people, but it can corona people. If you faint in the water, it is dangerous, and you will drown in a few minutes.

And toothfish, very small. Of course, the toothfish has shown its size. They are often parasitic on the gills of big fish and enter along the current of gills. So if you pee in the water, it will crawl into your penis along with the current. Of course, girls don't laugh. Your place is more spacious. The toothfish that enters the body can only be taken out by surgery. It is estimated that only those who have tried can speak.

The last green boa constrictor, this terrible animal, all of you have seen it in Python. Its longest length can reach 8 meters and its weight can reach 160 kg, so swallowing a person is just a snack! So when you meet a green python, you have to pray that it is full and can't eat another person!

Of course, there are threats from Amazon, jaguars and various poisonous snakes and insects. It is said that once a photographer entered Amazon to shoot, he accidentally cut his finger by a branch, and the wound festered rapidly, with a speed and degree beyond imagination. Fortunately, he went to the doctor in time, and the doctor warned him that two days later, it is estimated that his finger will be amputated!

Amazon rainforest is not friendly to human beings, but it is a paradise for wild animals. In the depths of the Amazon jungle, there are hundreds of thousands of Amazon aborigines, even tribes that have never been in contact with the outside world. We still know very little about Amazon.