The goal of this book is to foster better knowledge of the mammalian fauna of the Mediterranean islands. The atlas presents the current state of knowledge of the past and present distribution of the non-flying terrestrial mammals of the Ionian and Aegean islands. It provides a distribution map for each species with extensive references and a description of all the mammalian taxa. The book also focuses on the important role of human beings in the redefinition of the insular ecological equilibrium, as well as on the environmental impact of biological invasions. The protection and study of this fauna can provide an opportunity for testing a range of different evolutionary theories.