Acknowledgements
The study was funded by the National Research, Development and Innovation Office of Hungary (NKFIH, 115402), EN was financially supported by the Ministry of Human Capacities (National Program for Talent of Hungary, NTP-NFTÖ 17-B-0317), and OIH was supported by the NKFIH (124708) and by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. Nóra Vili contributed to DNA extraction and Rds1 genotyping. Márk Szederkényi and Patrik Katona helped with animal capture and care. We thank Gergő Tholt and the NÖVI Department of Zoology for allowing us to use their stereomicroscope and camera and for providing helpful advice. We are grateful to Renáta Pop for help with preparing histological sections, and to all members of the Lendület Evolutionary Ecology Research Group for insightful discussions. We are thankful to Nicolas Perrin for his help in our between-lab collaboration and for his constructive comments on the manuscript.