Mark Grimes, The University of Montana (IMAGE) The University of Montana Caption UM cell biologist Mark Grimes stands in front of a poster displaying the findings in his research paper. Credit Todd Goodrich 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.