We are looking for a highly motivated postdoctoral researcher to join our lab at Charles University, Prague, Czech Republic. The position is funded for two years by the Revive & Restore foundation (project start: April 2026) and focuses on the early development of tortoises in a conservation context. Basic information about the project can be found here: https://reviverestore.org/safeguarding-tortoises-diapause-and-biobanking-for-conservation/ The project aims to apply biotechnological techniques to support endangered tortoise species. You will work on a non-model organism and a rare biological phenomenon (tortoise diapause) using a combination of embryology and cell cultures in a creative environment where you can develop your own ideas,and contribute to a project with real conservation impact. You will be part of an international, collaborative team with strong links to Prague Zoo and other partners. Main responsibilities Develop and optimize cell culture techniques for embryonic and germ cells of tortoises Work with diapausing tortoise embryos and contribute to establishing long-term biobanking protocols Contribute to data analysis, manuscript preparation, and dissemination of results Candidate profile PhD in biology (developmental biology, cell biology, conservation biology, etc.) Strong hands-on experience with cell cultures is essential Experience with embryonic or germ cell culture is an advantage Interest in developmental biology, conservation, and biotechnology Good communication skills and ability to work in an international, interdisciplinary team How to apply Please send your CV, cover letter, and contact information for references to: lukas.kratochvil@natur.cuni.cz LukᚠKratochvíl (https://scholar.google.com/citations?user=yK6TThoAAAAJ) and collaborators Professor, Department of Ecology Charles University, Prague, Czech Republic LukᨠKratochvíl (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)