The European water vole, Arvicola amphibius, thrives in wetland habitats across Europe and Asia. Notable for its dense, water-repellent fur and chubby build, it is a proficient swimmer and burrower. Unlike common voles, it has a distinctive blunt nose and long tail. It plays a crucial role in aquatic ecosystems, supporting biodiversity.

The water vole (Arvicola amphibius) is native to Europe and parts of Asia. Its geographical distribution includes countries such as the United Kingdom, France, Germany, the Scandinavian region, and extends eastward to Russia. It is also found in parts of Central Asia, including Kazakhstan and western China.

Water voles typically inhabit areas close to water bodies such as rivers, streams, ditches, ponds, and marshes. They prefer environments with slow-flowing or still freshwater and are often found in regions with dense vegetation, which provides cover from predators and a food source. These areas usually have a temperate climate, with moderate temperatures and sufficient rainfall to maintain their aquatic habitats.

Arvicola amphibius plays an important role in its ecosystem as both a herbivore and a prey species. It feeds primarily on grasses and aquatic plants, which it cuts with its sharp teeth, impacting the vegetation structure of its habitat. The water vole is also a significant food source for a variety of predators, including birds of prey, foxes, and mustelids. Its burrowing activity contributes to soil aeration and influences the local landscape.