What's interesting about the insect memo? why

The one-horned fairy was clever enough to pull a car made of mud. According to the plot of "Insect Memorandum", the interesting content is that unicorns pull cars made of mud, because unicorns are the overlord of insects and can pull cars made of mud, which is very clever. Insect Memo is a popular science article. The author Wang Zengqi is a contemporary writer, essayist and dramatist in China, who has made great achievements in short story creation.