bobcat scat (IMAGE) Penn State Caption Since the 1989 bobcat release, researchers have returned to the island many times to collect bobcat scat like this from which to extract DNA to monitor the population's genetic health. Credit Duane Diefenbach/Penn State Usage Restrictions non commercial use only 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.