•The musicians who call “Zhizhi, Zhizhi” on the tree in summer are cicadas. If there are no cicadas, what will summer become? It must be much more lonely. Where did cicadas come from? Why did they disappear as soon as summer passed? Where are they the rest of the time? What are you doing? This book uses superb and beautiful photos and vivid language to give all the secrets about cicadas. This book can not only increase children's scientific knowledge, but also fill in gaps for adults. It is a classic popular science book.

•The life of a cicada takes a lot of time. Each cicada takes at least 7 to 15 years, or even 20 years of larval time, before it breaks out of the soil and crawls out of the ground to feather into a cicada. After the male cicada attracts the female cicada with its call to mate, the male cicada dies soon, even ifMale cicadas that do not mate have only a short period of about 2 weeks to spread their wings and soar.