The term "Pinna" refers to the outer part of the ear, also known as the auricle. It plays a crucial role in capturing sound waves and directing them into the ear canal. The shape and structure of the pinna help in determining the direction of sounds, which is important for spatial awareness. In addition to its anatomical meaning, "Pinna" can also refer to a genus of bivalve mollusks, commonly known as scallops. These marine animals are characterized by their fan-shaped shells and are often found in shallow waters. They are known for their ability to swim by rapidly opening and closing their shells.