The natural world is diverse, which the author of many books for children, Doctor of Biological Sciences Nikolai Nikolaevich Plavilshchikov, knew and loved so well. In this book, an entomologist talks about how interesting it is to observe the life and habits of insects living next to you: a bug, an elephant, a swimmer, a firefly and other inhabitants of this huge world of wildlife. Birch grows at the edge. Some of its leaves are rolled up like paper pounds. They are not glued together, not sewn, as if they are holding themselves. It turns out that this is the work of a small black bug trumpet. The guys found a worm nut in the forest with a small hole in the shell.