Santa Ana Mountain Lions (IMAGE) University of California - Davis Caption A mountain lion, F92, keeps watch while her juvenile cubs feed at a bait sight in 2014. Busy highways and growing urbanization in the area threaten pumas in Southern California and have led to their genetic decay, a UC Davis study found. Credit UC Davis Usage Restrictions Provide credit. License Licensed content 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.