The Simien Mountains Gelada Research Project is an interdisciplinary group of researchers (led by Drs. Thore Bergman, Jacinta Beehner, Amy Lu, and Noah Snyder-Mackler), who have been studying a wild population of geladas (Theropithecus gelada) in the Simien Mountains National Park, Ethiopia since late 2005. Our research focuses on diverse topics from behavioral ecology to developmental biology. We address these questions by combining detailed behavioral observations on known individual monkeys with cutting-edge techniques in genomics, endocrinology, and immunology to better understand the links between an animal’s physiology and its behavior, longevity, and reproductive success. Check out this page to read more about our research.