Desert bighorn sheep (IMAGE) Oregon State University Caption A desert bighorn sheep ewe (left) and ram are observed in the Providence Mountains in the Mojave Desert in California. Credit Rachel Crowhurst, Oregon State University. Usage Restrictions None 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.