WildTrack, which uses non-evasive research to monitor wildlife, has been working with Carolina Tiger Rescue for several years to build a database of tiger footprints. They currently have prints from more than 20 animals, which are the foundation for their software called FIT (Footprint Identification Technology). By collecting prints, they have been able to extract algorithms to identify tigers. They can determine the subspecies, age, sex, and individual animal all from an image of their footprint.