The spots gave it away. Just like a human fingerprint, the rosette pattern on each jaguar is unique so researchers knew they had a new animal on their hands after reviewing images captured by a remote camera in southern Arizona.

The University of Arizona Wild Cat Research and Conservation Center says it's the fifth big cat over the last 15 years to be spotted in the area after crossing the U.S.-Mexico border. The animal was captured by the camera as it visited a watering hole in November, its distinctive spots setting it apart from previous sightings.