Little Mouse on the Prairie (image) Stanford University Caption Stanford University researchers have identified the grasshopper mouse as the likely carrier of plague in prairie dog colonies throughout North America. Credit Dan Salkeld, Stanford University Usage Restrictions This photograph may be reproduced one-time only with permission of the Woods Institute for the Environment at Stanford University. 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.