The monograph "Common Hamster Cricetus cricetus (Linnaeus 1758)" prepared by A.V. Surov and N.Yu. Feoktistova in the series of the Russian Committee for the UNESCO Program Man and Biosphere (MAB) "Species of Fauna of Russia and Neighboring Countries" was recently published. This monograph is devoted to the common hamster – the only surviving species of the genus Cricetus (Cricetidae). Over the last 50 years, the hamster’s abundance throughout its range has been drastically reduced and, as a consequence of being considered a pest and target species, has become an endangered species (CR in accordance with IUCN). However, against the background of sharp population decreases in its natural habitats, Cricetus cricetus began to actively settle cities of Eurasia. Natural history studies of this species, including descriptions of expeditions of Russian natural scientists, zoonyms, systematics, morphology, phylogeny, phylogeography, karyology, ecology, ethology, and physiology of the species are considered in this monograph. A separate section is devoted to sinurbization - adaptations to successfully inhabit urban ecosystems. Results of 10 years of laboratory and field studies carried out by the authors, as well as numerous literary sources, are summarized. The book is intended for a wide range of specialists: zoologists, ecologists, ethologists, physiologists, and researchers of urban ecology, as well as schoolchildren and students of biological faculties. The full text of the monograph can be downloaded here.