Facial recognition technology is already widely used by governments, law enforcement and some advertising companies. The technology uses machine learning tools to search for faces in an attempt to identify people. Now, these systems are also being used to identify animals. In a recent study, scientists announced they had developed machine learning tools to track the faces of individual wild chimpanzees. The study was led by researchers from Britain’s University of Oxford. The results were published in Science Advances. Dan Schofield is a researcher and doctoral student working in Oxford’s Primate Models Lab. He said in a statement that the system was developed to improve the quality of information collected about chimpanzees in the wild over a long period of time.