Water Boatman (IMAGE) Society for Experimental Biology Caption The water boatman (Micronecta scholtzi), above, is only 2mm long but is the loudest animal ever to be recorded, relative to its body size, outperforming all marine and terrestrial species. Credit Jerome Sueur 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.