Cast of a <i>P.boisei</i> Skull (IMAGE) University of Cambridge Caption This is a cast of a P. boisei skull, used for teaching at Cambridge University Credit Louise Walsh 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.