Common Shore Crab (image) Queen's University Belfast Caption This image shows the common shore crab, used in the research, with wires attached to deliver a mild electrical shock. Credit Queen's University Belfast Usage Restrictions Embargoed until 2300 GMT / 1800 BST Wednesday 16 January 2013. 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.