P65 with kittens (IMAGE) University of California - Davis Caption P65 walks with her kittens. In a UC Davis study, female mountain lions were generally more active during the day and closer to sunrise, perhaps because they are constrained by avoiding male mountain lions and not able to respond as strongly to recreation. 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.