About the book: 2001 / The author of the book is a naturalist writer, Doctor of Biological Sciences, Professor of Zoology. He devoted his entire life to the study of nature and its animal world. Now, on the eve of his ninetieth birthday, like many, concerned about the fate of humanity, he wrote this, his last fifty-fourth book, on an unusual topic for him - about human nature. It is intended for a wide range of readers.