In a blink of an eye, ten days passed. During the ten days, Yang Song was worried every day and had almost never slept peacefully.

After ten days, Yang Song's octopus clone finally arrived in South America of Amazon, at the mouth of the Amazon River.

The Amazon River is 6992.6 kilometers long and has a basin area of ​​7.05 million square kilometers, accounting for about 40% of the total area of ​​the South American continent. It is the second longest river in the world, the largest river in the world and the widest basin area.

From the birthplace of the Ukayali-Aprimak water system in Peru, it is about 6,751 kilometers long. Its westernmost origin is the towering Andes Mountains less than 160 kilometers away from the Pacific Ocean. The entrance is in the Atlantic Ocean. The amount of water injected into the Atlantic Ocean every year is about 6,600 billion cubic meters, which is equivalent to 1/6 of the total amount of ocean water injected into the world rivers.

The estuary is 240 kilometers wide, and the flow rate during the flooding period reaches 280,000 cubic meters per second. The amount of water is so large that the sea water within 160 kilometers of the shore fades.

The Amazon River has abundant water volume all year round, with an average annual flow of estuary of 220,000 cubic meters/second, and a flow during flooding period of 280,000 cubic meters/second, making it the river with the widest basin area and the largest water volume in the world.

Most areas in the basin have tropical rainforest climate, and the upper reaches are plateau mountainous climates, with annual rainfall of more than 2,000 mm. The fertile silt deposited by the Amazon River nourishes 650 million square kilometers of areas. In the Andes Mountains, the famous Amazon tropical rainforests in the northern and Amazon River basins grow in the Amazon River basin.

The upper reaches of the Amazon River are about 2,500 kilometers long and are divided into two sections. The upper section is about 1,000 kilometers long, with a drop of 5,000 meters. The mountains are high and the valleys are deep, and the slopes are steep and rapid, forming a series of rapid waterfalls. The lower section is a section between the two estuaries of the Amazon River. Because it enters the Amazon Plain, the flow rate is slow and the winding flow is developed, and the river reaches the end is about 2,000 meters wide.

The estuary of the Amazon River is a funnel-shaped tide estuary that lies across the northeastern Brazil and injects into the Atlantic Ocean. It is formed by the confluence of the estuary of two different water systems, the Amazon River and the Tocantins River. It has a large runoff and surging tides. The tide-induced section is about 1,400 kilometers long, the width of the entrance gate is about 300 kilometers, and the narrowness of the near Gurupa is about 40 kilometers.

The Amazon River, located in the tropical rainforest area, has a precipitation of more than 2,000 mm, and is divided into dry and wet seasons. Most of the rainwater comes from the wet season. The maximum flow is 225,000 cubic meters/sec; the minimum flow is 90,000 cubic meters/sec, respectively. The average flow is 175,000 cubic meters/sec, which is 4 times that of the Congo River and 10 times that of the Mississippi River. The annual water intake of the Amazon River is 5,400 billion cubic meters, accounting for one-fifth of the total runoff flow in the world. If it spreads into a 10-meter-thick water layer, its area is equivalent to the North Sea (575,000 square kilometers).

The Amazon River Basin is a huge depression that was previously trapped in deep sea troughs, and was later filled with a large amount of sediment.

This huge depression spreads in skirt shape on the upper reaches of the Amazon River. It is located between two ancient and less high crystalline plateaus: the rugged Guyana Plateau to the north and the lower Brazilian Plateau to the south.

In the Pliocene Amazon River Basin was a huge freshwater lake, which broke into the Atlantic Ocean at a certain period of the Pleistocene, and the river and its tributaries penetrated deeply into the bottom of the Pliocene lake.

And there is a large submerged valley on the Amazon River and its tributaries. The Pleistocene glaciers melted, the sea level rose, and the steep canyons had eroded into the Pliocene surface when the sea level was low, and were completely submerged at this time.

The ancient sediment ground in the basin was the soil of permanent land, and most Amazon rainforests developed on this soil.

In the upper reaches of the basin (eastern Peru and Bolivia), sediments washed down from the Andes later covered the ancient surface.

That is, this magical area full of legends has not been used well.

According to valid data, there are 15,000 tributaries of the Amazon River, divided into large areas of land in South America, and the basin area is almost as large as the entire Australia. Among the tributaries, seven are more than 1,600 kilometers long; the longest is the Madela River, which is more than 3,200 kilometers long.

So, Yang Song has no way to let his octopus clone swim around him now.

Although Yang Song can swim with his octopus clone according to the induction between the body and the clone, Yang Song dared not take risks.

Because Yang Song cannot accurately determine where he is, based on the induction of the body and the octopus clone, combined with some knowledge, Yang Song guessed that he was on one of the thousands of tributaries of the Amazon River.

Among the tributaries of the Amazon River, there is a terrible creature that makes people afraid of it, that is, the piranha.

The piranha is oval, flat on the side, and has a caudal fin. It is gray-green, with dark green back and bright red abdomen. It has sharp teeth and a well-developed and thorny jaw. It is famous for its ferocity and is known as the "Wolf Clan in the Water".

Piranha has a highly developed hearing and has abnormally sharp teeth. After biting the prey, it will bite it tightly, and tear off the flesh with its body twist. It can bite 16 cubic centimeters of meat in one bite.

The rotational replacement of teeth allows them to continue foraging, and strong teeth immediately cause serious bites. They often appear in groups, with a leader in each group. During the dry season, the waters become smaller, and the piranhas will gather in large groups to attack the animals passing through the waters.

So Yang Song cannot let his octopus clone take risks. If he meets a piranha school in a tributary, then Yang Song's octopus clone can be said to be K.O.

It is not his octopus clone, K.O piranha school, but his octopus clone.

Now Yang Song is on the edge of a tributary of the Amazon River. According to the information I checked online during special training and when I was unemployed at home, Yang Song is very clear that he is close to the main stream of the Amazon River.

Ten days ago, No. 0 told Yang Song that the mutated anaconda was within fifty miles of the radius of his parachuting. However, during these ten days, Yang Song had searched almost all the radius of fifty miles, but still did not find the mutated anaconda.

This made Yang Song very tired. He worked hard to find the surrounding places but did not find the mission target. Instead, due to food and drinking water problems, Yang Song often met Cayman.

Just when Yang Song wanted to complain, a huge figure on the grass beside the swamp in front of him made Yang Song's spirit instantly shake.

The giant creature was a snare. From the reflection on the scales, Yang Song calculated the length of this snare, which was at least twenty meters!

It is obvious that this anaconda that is basking in the sun is the mission goal of Yang Song's trip.

PS: Readers, I was wrong. There is too much information in recent chapters. I regret it. I will pay attention to it later.
Chapter completed!