First and senior authors (IMAGE) University at Buffalo Caption From left: The study’s senior authors Omer Gokcumen and Stefan Ruhl, and first author Petar Pajic. Gokcumen is a UB associate professor of biological sciences; Ruhl is interim dean of the UB School of Dental Medicine and a professor of oral biology; and Pajic is a UB PhD student in biological sciences. Credit Douglas Levere / University at Buffalo Usage Restrictions This image may only be used in news stories discussing the research in the related press release. License Original 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.