Vespertilio murinus is the scientific name for the common European "long-eared bat." Some of the synonyms for this fascinating mammal include the English long-eared bat, the Ohrdeipel, and the common long-eared bat. These bats are distinguished by their incredibly large ears, which can reach up to 3cm long. They are generally found throughout Europe, from Scandinavia to the Mediterranean. They are also known to roost in various habitats, including forests, agricultural land, and buildings. These fascinating creatures are an essential part of many ecosystems, as they help control insect populations and serve as prey for other animals.