Luke Premo, Washington State University (image) Washington State University Share Print E-Mail Caption Luke Premo, an associate professor of anthropology at Washington State University, is one of several researchers questioning a widely held assumption about when human ancestors first shared information with each other. Credit Bob Hubner, WSU Photo Services Usage Restrictions Please credit. 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.