About the book: 2020 / Everyone in the world has a friend. In the wild, this is called symbiosis, for example, starlings help a rhinoceros in a friendly way, eating midges from the giant’s body, and in turn, the rhinoceros protects the birds from predators. But what about crocodiles? Can these monsters really have friends? Of course, assures Valya Potseluychikova, a hereditary animal lover from the Potseluychikov family of veterinarians. But who is he? If no animal dares to get close to the toothy green beast.