Maggie -- Conservation Dog (IMAGE) University of California - Berkeley Caption Maggie, a Labrador retriever mix, was one of two dogs trained by UC Berkeley researchers to detect the scat of certain species as part of a research project to improve wildlife surveys. She is shown here at the Hopland Research and Extension Center, a UC research field station in Mendocino County. Dogs are trained to lie down when they find their target, and their successes are rewarded with play sessions. Credit Photo by Nancy Haggerty/Marin Humane Society Usage Restrictions Must include credit with use 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.