Research: From puppyhood to senior age (IMAGE) Eötvös Loránd University Caption Reasercers investigated the personality of 217 Border collies across a wide age range (from 6 months to 15 years) Credit Photo: Kubinyi Usage Restrictions Credit must be given 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.