Why don't Bats fly into objects at night?
So, why don't bats fly into things at night? They use echolocation to locate food and avoid obstacles. They have the ability to create and hear noises that humans cannot hear. The sound waves bounce off of objects and back to the bat, which can then judge the size and distance of the object. These subsonic noises vary in length and pulse frequency, and are unique to the individual. Each bat recognizes its own pulse reflections, or "voice," and uses it to avoi ...more