M: Elephants are interesting. They are intelligent. 
They also have a great memory. You should 
always be kind to elephants. They remember 
everything. A woman from India told me a story. 
When she was a little girl, she knew of an evil 
elephant keeper. He often hit his elephant. He was 
very mean and cruel to the elephant. Then the evil 
keeper sold the elephant. The new keeper was a 
very kind man. Many years later, the evil keeper 
met the elephant again. The elephant remembered 
the evil man. He picked up a stone with his trunk and 
threw it at the evil man. The elephant still knew the 
man, even after so many years. 
Elephants help each other, too. Elephants use 
a special sound. The sound is so low that people 
cannot hear it. This sound travels really far 
Groups of elephants can communicate with each 
other, even if they are far apart. This is very useful 
because it helps the elephants to find water and 
food. The elephants cooperate to help each other.

Unit 02

M: The Amazon is an amazing river. It is unique 
in many ways. It is the second longest river in 
the world. It is 6,500 kilometers long. It starts 
up in the Andes Mountains. Its drainage basin 
(the area of land that collects water) covers 40 
percent of South America. The Amazon River 
has many small rivers that supply it with water. 
It is the widest river in the world. The river 
rises more than nine meters during the rainy season. 
It overflows its banks. It floods large areas of the 
rainforest. During that time, in some parts, it has a 
width of up to 40 kilometers. The Amazon River is 
over 325 kilometers wide at its mouth. It has more 
water than any other river in the world. 
The Amazon River is also home to many animals. 
Over 2,000 types of fish live in the Amazon 
River. One kind of fish is the piranha. The piranha 
is a terrifying fish. A piranha grows up to 60 
centimeters long. It hunts in a group. A group of 
piranha can kill and eat cattle in a matter of minutes. 
They are so efficient that only the bones are left. 
This fish is one of the most dangerous creatures in 
the Amazon River.

J.Nobita