Original article: Study of congenital anomalies of pinna and the ecological influence on it's development.

Pinna is present in mammals only and not found in any other living species. Various congenital anomalies of Human pinna often mimic the appearance of normal pinna of many mammals of lower order. Ecology has been observed to play a role in the development of pinna. Anomalous pinna though frustrating for both patients and clinicians, are mostly amenable to treatment.