Scientist and Soldier (IMAGE) U.S. Army Research Laboratory Caption Army researcher Dan Baechle (right) briefs Sgt. Michael Zamora on how to use the Third Arm exoskeleton device from the Army Research Laboratory at Aberdeen Proving Ground, Maryland. Credit (US Army photo by Conrad Johnson) 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.