Hook Worm <i>Necator Americanus</i> 2 (IMAGE) University of Nottingham Caption Researchers interrogate the worm surface and its sheath in unprecedented detail using Atomic Force Microscopy and Time-of-Flight Secondary Ion Mass Spectrometry. Credit The University of Nottingham 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.