OPEN PHD POSITION IN AMPHIBIAN THERMAL PHYSIOLOGY The STELLAR Research Group (https://www.philippekok.com/stellar-research-group/), based in the Department of Ecology and Vertebrate Zoology, University of Lodz (central Poland), is seeking an outstanding, curiosity-driven PhD candidate with a strong interest in evolutionary biology. The successful applicant will join an NCN-funded project entitled: "When the chill hits: respective role and importance of low molecular weight cryoprotectants, ice-binding proteins and skin microbiota in supercooling amphibians (SUPERCOOL)" Supervisor: dr hab. Philippe J. R. Kok, prof. UL Project description Starting in October 2026 (position funded for 48 months), the PhD student will investigate how amphibians cope with extreme cold, with a particular focus on antifreeze proteins in tropical species. The project combines challenging fieldwork with laboratory and computational approaches. Fieldwork will involve collecting biological samples from cold-exposed and control animals, often under demanding environmental and logistical conditions. Laboratory work (both in the field and in Poland) will include assessing antifreeze activity, contributing to the identification of proteins and genes involved in cold tolerance, and analysing gene expression patterns. Parts of the molecular work will be conducted in collaboration with specialised research facilities. Overall, the PhD project offers interdisciplinary training spanning field biology, molecular techniques, and data analysis, addressing fundamental questions in cold adaptation. Minimum requirements * MSc degree in Biology or a related discipline * Proficiency in spoken and written English * Ability and willingness to conduct fieldwork in remote areas under physically demanding conditions(good physical condition is required; access to the field laboratory involves up to three days of hiking in rugged terrain) Highly desirable qualifications * Strong interest in amphibian biology and thermal physiology * Experience with molecular biology techniques * Strong writing and communication skills Additional skills considered an asset * Experience in bioinformatics * Experience in statistical data analysis * Evidence of scientific outreach or dissemination Place of work ódŸ, Poland How to apply Please send an email to philippe.kok@biol.uni.lodz.pl containing: * A CV * A cover letter including a statement of research interest and relevant experience * Contact details for 1-2 referees For informal enquiries, prospective applicants are welcome to contact Philippe Kok at philippe.kok@biol.uni.lodz.pl and/or pjrkok@gmail.com. Review of applications will begin immediately and continue until the position is filled. Shortlisted candidates will be invited for an online interview and guided through the formal application process. "Philippe Kok Jacques R." (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)