The book “Fossil lower vertebrates” by authors Ivan Ivanov and Sergei Cherepanov is a fascinating and profound study that immerses the reader in the world of ancient creatures that lived on our planet millions of years ago. This edition will be a real find for all those interested in paleontology, biology and history of the Earth, as well as for students and specialists in the field of natural sciences. In Fossil Lower Vertebrates, the authors offer the reader a unique perspective on the evolution of lower vertebrates, such as fish, amphibians, and reptiles, which have become the basis for the formation of more complex forms of life. The book covers a wide time range, from ancient fossils to more recent finds, allowing a better understanding of how life evolved on Earth and how ecosystems changed depending on climatic and geological changes. One of the main themes of the book is the evolution and adaptation of lower vertebrates to different environmental conditions. The authors describe in detail how these organisms responded to climate change, how they migrated, and what survival strategies they used. Readers will be able to learn about how different species interacted with each other and with the environment, which makes the book not only a scientific, but also a philosophical reflection on life and its diversity. The book will be of interest not only to professional paleontologists, but also to a wide audience, including students, teachers and science lovers. If you are passionate about the history of life on Earth, want to understand how ecosystems formed, or just looking for an interesting leisure reading, Fossil Lower Vertebrates will be an excellent choice. This work not only informs, but also inspires further research and study of the world of paleontology. The style of the authors is distinguished by clarity and accessibility, which makes complex scientific concepts understandable to a wide audience. Ivan Ivanov and Sergey Cherepanov are known for their work in paleontology and ecology, and in this book they combine their knowledge and experience to create a fascinating and informative text. Their previous works, such as The Evolution of Vertebrates and Paleontology: From Fossils to Modern Ecosystems, have also earned readers' recognition and love, and Fossil Lower Vertebrates will be no exception. The book is replete with vivid illustrations and photographs that help to visualize the species described and their habitat. This makes reading not only cognitive, but also visually attractive. Readers will be able to see what these ancient creatures looked like, and imagine their lives in prehistoric times. In conclusion, Fossil Lower Vertebrates is not just a book about paleontology, but a real odyssey in time that opens the door to a long-gone world for the reader. This work will be a valuable addition to the library of everyone who is interested in the nature, history and evolution of life on Earth. If you are looking for an exciting and informative reading that will broaden your horizons and deepen your understanding of the world, this book is definitely worth your attention.