Freshly Printed RUBS (IMAGE) University of Queensland Caption RUbble Biodiversity Samplers (RUBS) are lightweight 3D-printed models that provide a standardised unit to monitor biodiversity in coral rubble habitat. Credit The University of Queensland Usage Restrictions To be only used with this story. 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.