Historical Dog and Wolf Lineages (IMAGE) University of Chicago Medical Center Caption Figure 5 depicts wolf and dog lineages as they diverge over time. Credit Freedma, et al / <i>PLoS Genetics</i> 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.