Dog in GPS harness (IMAGE) University of Oxford Caption This is a Vizsla dog wearing high-precision GPS harness, data from which was used to determine dogs' social rankings. Credit Zsuzsa Ákos 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.