Harris with Samwise (image) University of California - San Diego Share Print E-Mail Caption This image depicts emotion researcher Christine Harris, professor of psychology at UC San Diego, with Samwise, one of three border collies to inspire the study on dog jealousy. Credit Photo by Steve Harris. Usage Restrictions Only with this study and with credit. Share Print E-Mail 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.