Wild squash (IMAGE) Michigan State University Caption By analyzing native plants, such as this wild squash, in the Californian desert, a team of researchers from Michigan State University and the University of California, Riverside revealed that non-native viruses from agriculture are invading these habitats. Credit Tessa Shates Usage Restrictions No restrictions License Original 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.