Genus Arvicola, commonly known as water voles, is a group of rodents that inhabit the banks of rivers, streams, and other water bodies. Some of the synonyms for the word Genus Arvicola are Microtus arvalis, Arvicola terrestris, and Microtus amphibius. Due to its physical characteristics and behavior, water voles can be easily distinguished from other rodents like rats or mice. They have a round-shaped body, short legs, and a furry tail that differs in length according to their species. These small creatures play an important role in their habitat's ecosystem, serving as prey for owls, herons, and other birds of prey.