Brown Long-eared Bat

Its tell-tale characteristic consists of prominent outer ears, which the bat keeps erect and turned forward during flight. On the forehead, these ears are fused with a membranous seam, and equipped with 18-24 transversal muscles, which allow the bat to fold them back, accordion-like, when at rest. During hibernation, the ears are kept close to the body and tucked away under the wings, so that only the long, membranous earlobes stick out on the front. This bat prefers to hibernate in caves, hollow trees, and the attics of human dwellings.