How scary is the Amazon?Why hasn’t a bridge been built or even entered?
The Amazon river has 15,000 tributaries and its drainage area reaches 6.915 million square kilometers, accounting for 40% of the South American continent and feeding countless local people.And yet, in the river with the largest flow in the world, there is not a bridge!In theory, with the current level of development, facing the vast sea, human beings can also build a bridge across the sea.But why isn’t there a bridge across the Amazon?How difficult is it to build a bridge over the Amazon?What horrible creatures live in the Amazon?First of all, the amazon river has many branches and a large flow, which makes it difficult to build Bridges.According to statistics, the Amazon river has a total of 15,000 spiderlike tributaries scattered across South America, the longest of which is 3,200 kilometers long.If you want to build a bridge over such scattered tributaries, if you build only one bridge, you may have to cross many tributaries, it is very difficult to build a bridge;If multiple Bridges were built to connect the tributaries, it would cost more than it would cost.In addition, as the Amazon river is located near the equator, it is controlled by the equatorial low pressure belt and has abundant precipitation. As a result, the river flow of amazon River is very large, which is several times more than the Nile river, Yangtze River and Mississippi River combined.The Amazon is not only a large river, but also located in the plain of the tropical rain forest, the terrain is gentle, not more than 200 meters above sea level, so the rivers here are winding, numerous lakes and marshes, and the soil is loose.Seasonal rains also flood the Amazon and its tributaries, so Bridges built over the Amazon are less stable than they would be if they were washed away after a heavy rain.Secondly, the cost of building a bridge is too high, and the economic benefits are not as good as shipping.Most of the countries through which the Amazon river flows are developing countries, surrounded by tropical rain forests, with low population density and scattered population.The Amazon river has abundant water, wide water depth and slow flow, so the use of boats is sufficient to meet the needs of local residents, and shipping can also be used to promote local economic development.So to build a bridge over the Amazon, at great expense and with great difficulty, would be a waste of time.Although there is no bridge over the Amazon, there is a single bridge over one of its tributaries, the Negro, called the Negro Bridge.Although the Negro Bridge is only built on a small tributary of the Amazon river, it is also the longest bridge in Brazil at 3,595 meters.Even a bridge over a tributary of the river is so long that it would be a bottomless pit of work and cost to build a bridge over the main river.The Negro Bridge, which connects Manaus with Duba, Iran, costs $620 million to ease traffic and promote economic exchange and development in Brazil.So it only makes sense to build a bridge when the economic benefits outweigh the costs.The amazon’s gentle terrain and high mud content make it difficult to build Bridges, but it is important in terms of biodiversity.The Amazon basin is largely plain, and its slow flow results in fertile silt deposits that nourish the world’s largest tropical rain forest.Tropical rainforests are home to the world’s most diverse biological resources, with more than 2.5 million insects, tens of thousands of plant species and at least 2,000 freshwater fish species living in rivers, more than twice as many as in the United States, Canada and Mexico combined.Such abundant biological resources make the Amazon river basin a recognized “kingdom of life” in the world.The Amazon is home to a variety of strange creatures, and some of them are terrifying, so the amazon has another name: the “Human exclusion zone.”Let’s learn about some of the dangerous and frightening creatures hiding in the Amazon.Piranha piranha, also called piranha, are omnivorous and carnivorous.They live in groups and attack people and animals.Although they are small in size, they are very fierce in temperament. They have triangular, sharp teeth, which are arranged up and down. They have short but powerful jaws.Piranhas are extremely sensitive to blood, which excites them when it seeps through their bite, and they continue to bite their prey even more furiously, until nothing remains but bones.In addition, when they attack large prey, they attack the shoulder first, because that’s where it’s weakest.Scientists once thought piranhas weren’t as scary as they were supposed to be, but in 2015 a piranha ate an 11-year-old boy who fell overboard.But piranhas are only as good as their numbers, and when separated or in small numbers they become very timid.So don’t be alarmed if you see one or two piranhas, but if you see a large group, leave them alone and stay away!Constrictors Amazonia, the largest constrictor in the world today, loves to live in bogs or in slow flowing water.Adult Anacondas can grow to be as thick as an adult man, up to 10 meters in length and weigh more than 225 kilograms.Anacondas are very stretchable and can open their mouths up to 180 degrees, so they can eat prey much larger than themselves. They are at the top of the food chain in the ecosystems of South American rivers.Amazon anacondas are non-poisonous, and they usually outhunt with size and strength.They use their huge bodies to trap their prey, and the more the prey struggles, the tighter the grip, until it suffocates and then slowly eats.It’s not uncommon for anacondas to devour humans with their own strength, but eating humans has never been proven. Even so, people who disappear in swamps are usually presumed to be eaten by snakes by default, because if ensnaked by anacondas, even humans can’t escape on their own.Electric eel The electric eel, as its name suggests, is a fish that can discharge electricity and is found in the Amazon River basin.There are a lot of fish that can discharge electricity, but the electric eel is one of the most powerful.An electric eel can produce between 300 and 800 volts of electricity, enough to stun an adult, making it one of the most feared freshwater animals on earth.The electric eel is a slow-moving animal that lives in muddy, slow-moving waters and is only about 2.5 meters long, but it has few predators and can kill a crocodile on its own.Video footage shows a hungry crocodile trying to eat an electric eel in one bite, only to be shaken by the current and soon electrocuted.Even humans run away from electric eels. In the Amazon, people often fall into the water and drown after being knocked unconscious by the eels’ current.Megalohynchus megalohynchus is one of the surviving ancient freshwater fishes and the largest freshwater fishes in South America.Mostly found in primitive tropical jungle waters, the body is huge, the longest adult up to 3 meters.Megalogue fish have great strength and can easily knock out an adult male using their tail as a weapon.The Amazon may be calm on the surface, but underwater there are hidden dangers.There are many other dangerous animals in the Amazon, including transparent catfish, cute giant otters, caimans and vampire fish. No wonder no one swims.Today, with the rapid development of science and technology, it is not easy to have such a natural growth of pure land as the Amazon River basin. We must do our best to protect this pure land and biodiversity.