The Listening Shape: A Comparative Inquiry Into Human Ears, Animal Ears, Sensory Ecology, And The Evolutionary Geometry Of Sound
The Listening Shape: A Comparative Inquiry Into Human Ears, Animal Ears, Sensory Ecology, And The Evolutionary Geometry Of Sound DOI: To be assigned John Swygert May 18, 2026 Abstract This paper examines the external ear as a biological structure shaped by survival, communication, environmental pressure, and acoustic need. While hearing is often imagined as an internal process, the outer ear is not merely decorative anatomy. In mammals, the pinna, or auricle, helps direct sound into the ear canal and contributes to sound localization, especially through direction-dependent filtering of incoming sound. Human ears are especially interesting because they are fixed, complex, folded, asymmetrical surfaces rather than large mobile radar-like structures. Cats, dogs, bats, prey animals, and humans all reveal different evolutionary listening strategies through the shape, size, mobility, and orientation of their ears. This paper proposes that ear morphology should be understood as an acoustic re...