'Nariokotome Boy' (IMAGE) University of Cambridge Caption This is a cast of the 'Nariokotome Boy' (Homo ergaster) skeleton. Credit Jay Stock Usage Restrictions Please credit. 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.