Einar Eg Nielsen with shark jaws (IMAGE) Technical University of Denmark Caption Einar Eg Nielsen with shark jaws Credit Photo: Einar Eg Nielsen. Usage Restrictions Only to be used in relation to this particular story. Credit: Einar Eg Nielsen. 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.