On the east side of the Mount Rapina in the middle of the South America, there is a flowing water, flowing north along the surface of the ancient rocks in the east of the mountain, and then turns eastward on the city of Ichis, Peru. Along the way, it gathered tens of thousands of tributaries, and eventually formed an unspeakable torrent, and it entered the Atlantic day and night. It is the world's largest river -the Amazon River.

The Amazon River is 6,440 kilometers in length, second only to the Nile. It is the world's second largest long river. Its watershed area is 6.915 million km², accounting for about 40%of the total area of South America.

It is the pride of the Latin American people. It is mighty, winding through eight countries and regions in South America, 90 % of which is located in Brazil. The Amazon River Basin is located near the equator. The local climate is humid and the rainfall is abundant.

At the same time, poisonous mosquitoes and pests breed here. At present, there are still many regions in the local area that are not yet open, which is full of mystery and thrilling.

The Amazon River is located near the equator, and most of them belong to the tropical rain forest climate. This climate is characterized by high temperatures and rain throughout the year, so the annual precipitation in the Amazon Basin is above 2000 mm. The abundant water volume also made the Amazon River Basin cumulative in rich mud all year round, nourishing many areas. Amazon's tropical rain forest in this area was the largest tropical rain forest in the world. Therefore, it has the name of "lungs of the earth".

No one has built a bridge on the Amazon River so far, mainly because the Amazon Basin River is scattered, and countless bridges need to be built to cross it.

Moreover, there are few people here, and the bridge is not economical, which is not as good as a boat -building. Moreover, the Amazon River Basin has too little population and scattered residence, and there is no need to build a bridge at all.

On the entire Amazon Plain, the population has only been counted by 15 million people. These people are basically primitive Indians. They live a life of fishing and hunting, and the social and economic value of building bridges is not great.

Moreover, the river of the Amazon River is very wide, and the river channel at the entrance of the sea is still 40 kilometers wide. Therefore, the cost of building a bridge across the Amazon River is too costly, which is not cost -effective.

Looking at the lush rain forests, the leaves are lush, and the blue sky is reflected in the river water, like a beautiful scroll. Looking at this scene, especially in the hot summer, we will have the urge to jump down and swim.

But beautiful things often imply various crises. Because the climate conditions of the Amazon River Basin are warm and suitable, many creatures often settle here. There are many types of creatures in the basin. Most of them are fierce and strong, which will threaten people's life safety.