Ben Pearce and Ralph Pudritz, McMaster University (image) McMaster University Share Print E-Mail Caption This is Ben Pearce and Ralph Pudritz of McMaster University's Origins Institute. Credit JD Howell, McMaster University Usage Restrictions None. Share Print E-Mail 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.