R. Michael Roberts Discusses New Finding (AUDIO) University of Missouri-Columbia Your browser does not support the audio element. Caption R. Michael Roberts explains why the pig is such a good model for future stem cell research. Credit Christian Basi/University of Missouri Usage Restrictions None 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.