Studies in recent decades have shown that the gap between the human psyche and the psyche of animals is much smaller than it seems. Sometimes it is not even about the abyss, but about a small gap .. And first of all, this applies to such animals as killer whales - far from us evolutionary and lifestyle, but close in intelligence and sociality. How do these marine mammals live and communicate with each other? Can we understand their language? How do they build their families? What is the difference between fish-eating and carnivorous killer whales? Hardly anyone can tell about this more fascinating and authoritative, than Olga Filatova , Biologist, Specialist in the field of acoustic communication of mammals and the behavior of cetaceans. Together with her and her colleagues, the reader will go to Kamchatka , Chukotka , Commander Islands , Where is the research of whales , will observe the course of difficult and exciting expeditions , know, how the history of killer whale capture in Russia began and ended and what role scientists played in the fight against illegal capture