By opening this amazing book, you become not only a Reader, but also a Caretaker. You are immersed in the truly unknown world of the Arctic Ocean, where the author of this book, Alexander Semenov, invites you! For a marine biologist, any sea is an open book full of amazing stories. It is for the stories that we go under water with our author, whose efforts we will approach the unique creatures of the underwater world, we will hear a difficult, but scientifically informative story about the inhabitants of the icy waters of the White, Barents, Pechora and Okhotsk seas, the North Pacific Ocean and the Sea of ​ ​ Japan.