Do animals communicate with each other？
   This question came to my mind one day when I was sitting outside. （1）

B

B

I looked around and saw a cat sitting low on the grass，ready to jump onto the birds.But the cat was too late.The birds suddenly flew to safety.The loud calls had warned them about the danger.
   （2）

A

A

They don't use language，but they do send messages to each other in three main ways：through sound，smell，and body language.The alarm call is one way that sounds are used for communication.When an enemy is near，animals send out a warning sound.Those who hear it run to safety，hide，or come together to fight the enemy （3）

E

E

Whales are well known for their ability to communicate over a long way with complex （復雜的） vocal sounds.Humans don't understand the meaning of these sounds，but in their own social groups，whales understand what they're saying to each other.
   （4）

C

C

Some animals，like skunks （臭鼬），send out a strong smell to warn other animals to stay away from them.There are many examples of animals that use body language to communicate.Chimpanzees （黑猩猩）touch hands when they meet.Think of a happy dog moving its tail.Even humans understand this form of dog body language.
   （5）

D

D

But if you watch other animals for a while，you'll quickly come to know that they also have ways of getting their messages across.

A．I did some research and，to my surprise，I learned that all animals communicate.
B．I heard some birds making what sounded like a sad call.
C．Smell is another popular method of animal communication.
D．Humans use words and sentences to communicate with each other.
E．Animals make different sounds to show other animals how they're feeling.