P22 at night (IMAGE) University of California - Davis Caption P22, the well-known "Hollywood Cat," was among the mountain lions of Los Angeles who shifted his activities to be more nocturnal in response to humans. Credit National Park Service Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.