Dong Wang and Michael Deem (IMAGE) Rice University Caption A computer model of human migration in the Americas by Rice University researchers Dong Wang (left) and Michael Deem could also shed light on the behavior of metastatic cancers. Credit Jeff Fitlow/Rice University Usage Restrictions For news reporting purposes only. 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.