Communication is a part of our everyday life. Like us Animals, too interact with one another via verbal or non-verbal method. Singing is one of them. Male blackbirds sing to attract the females and to keep away other blackbirds from their territory. Sea mammals, like whales groan and grunt, whereas dolphins and porpoises produce pings, whistles and clicks to communicate with other mates.

We summarized the text. Let’s see what changes we made here.

Firstly, we use the introductory sentence. Then, with the help of keywords, we try to compose a new paragraph.