Average Colbert (image) University of California - Berkeley Caption Users can use the tool to focus on images in which President Obama appears over Stephen Colbert's shoulder, and then observe Colbert's typical body posture among those results. Credit Photos by Jun-Yan Zhu, Yong Jae Lee and Alexei Efros, UC Berkeley Usage Restrictions All rights reserved. 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.