Earth System Dynamics and Its Role in Human Evolution in Africa (image) Arizona State University Share Print E-Mail Caption Many flags, representing collaborators from eight countries and 22 organizations, fly near the drilling site in West Turkana, Kenya. Credit Chris Campisano, Institute of Human Origins, Arizona State University Usage Restrictions Use only with permission. 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.