Dr. Rosaura Mayén-Estrada is a Full time Professor at Protozoology Laboratory, Department of Comparative Biology, Faculty of Sciences, Universidad Nacional Autónoma de México (UNAM). She is currently teaching classes in Protozoology and Animal Biology. She obtained her PhD at Universidad Nacional Autónoma de México (1997). As a researcher she is dedicated to the study of the diversity, taxonomy, ecology, geographic distribution and molecular aspects mainly of ciliates, but also to gregarines, heterotrophic flagellates and free-living amoeba from Mexico. She is the author of 45 research articles, 5 book chapters and a reviewer of papers in many esteemed journals.