Sugar Gliders (<i>Petaurus breviceps</i>), Grey Short-Tailed Opossums (<i>Monodelphis domestica</i>) (IMAGE) BMC (BioMed Central) Caption Many animals show a distinct preference for using one hand/paw/hoof over another. Credit Andrey Giljov, Karina Karenina and Yegor Malashichev 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.