Dog Researchers' Dogs (IMAGE) University of Utah Caption University of Utah biologists K. Gordon Lark and Kevin Chase were part of a multi-institutional team that identified ancient genetic material responsible for making small dogs small. Here, Chase plays with his toy poodle-Maltese mixes, Bonbon and Fille, while Lark's medium-sized Portugese water dog, Mopsa, rests at Chase's feet. Credit Diana Chase, University of Utah 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.