The book "Bilateral division of the parietal bone in a chimpanzee; with special reference to the sharp sutures in the parietal bone" by the well-known author Ales Hrdlychka is an important study in the field of anthropology. In this work, the author examines in detail the anatomy and physiology of the parietal bone in chimpanzees, paying particular attention to the specific division of this bone into two parts. In addition, Hrdlichka examines the features of sharp sutures in the parietal bone and their influence on the development and functioning of this part of the skull. This book will be useful to both anthropologists and anyone interested in evolution and the connection between bony anatomy and primate behavior.