1. A device for identifying an animal having a granula iridica comprising: a camera for photographing an eye of an animal and creating an image; a body data capturer for capturing body data including granula iridica data of the photographed eye from the image created by the camera; a body data registry for pre-storing a plurality of granula iridica data; and a body data correlator for comparing granula iridica data stored in the body data registry with the captured granula iridica data and identifying the photographed animal as a registered animal or a non-registered animal.