The Amazon River begins in the Andes Mountains in South America. It passes through six countries. The Amazon is the second longest river in the world. But the Amazon has more water in it than any other river. That is why it is called the world's biggest river.
There are so much water in the Amazon that when it reaches the sea, the water travels far out into the ocean. The river is very deep and very wide. In some places it is so wide that a person on one side cannot see the other side. When the river floods, it is even wider. The river floods every year. So some people who live beside the river build their houses on rafts.
There are millions of fish in the Amazon River. One of these is the piranha(水虎鱼) with its very sharp teeth. Piranhas hunt in group. They usually eat other fish, but sometimes they attack large animals or even people.
