Speaking of Research recently sat down with Lauren Wooddell, a laboratory assistant at the California National Primate Research Center, to discuss her research paper to be published in the May 2017 issue of the Journal of the American Association for Laboratory Animal Science (JAALAS) titled, “Elo-rating for Tracking Rank Fluctuations after Demographic Changes Involving Semi-free ranging Rhesus Macaques (Macaca mulatta).” The paper is available in early view online now. In In the Speaking of Research article, Lauren describes this study and its implications for animal welfare, and also for a better understanding of primate societies.