Grazing Herd of Bighorn Sheep (image) National Evolutionary Synthesis Center (NESCent) Caption These are big-horn sheep grazing (Ovis canadensis). Big-horn sheep are herbivores. Credit Photo by Samantha Price Usage Restrictions None 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.