Hitchhiking crab found on a ship (IMAGE) University of Cambridge Caption European shore crab, Carcinus maenas, found living on a ship that visited Antarctica and the Arctic. Credit Arlie McCarthy Usage Restrictions With credit License Original 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.