Grzegorz Kłys is an assistant professor at the Institute of Biology, University of Opole. Kłys received a Master's (2000) at the Faculty of Biology and Environmental Protection of the University of Silesia, Katowice and a Doctorate of Biological Sciences at the Institute of Systematics and Evolution of Animals of the Polish Academy of Sciences, Cracow (2003). Kłys's scientific interests include research on underground systems as potential habitats for organisms with different degrees of adaptation, including bats. Kłys is a member of the "Silesian Entomological Society" and "Copernicus Society of Naturalists". Kłys's awards include a Medal from the Polish Speleological Society named after Dr. Ing. Maria Markowicz-Łochinowicz (2008; 2023); award of JM Rector of the University of Opole for scientific and teaching activities (2004); distinction in "photography and nature" (2004) and distinction for the photo essay "Tajikistan—people and nature" within the framework of "Transformations in the Region" RITA (2008); Crystal Medal, "Friend of Bats" (2017; 2018; 2021, 2022, 2023), awarded by the Medal Chapter and the National Board of the Association of Poland-East Cooperation. Kłys was nominated to a Chapter of the Editorial Board of "Nowa Trybuna Opolska" for the title Personality of the Year 2020 in the category of Science, has distinction of the Mayor of the City of Bytom for activities in favor of nature 2021, and is on the Scientific Council of the Opole Landscape Parks.