Jakub Fořt
Doctoral student of Zoology at the Faculty of Science of the Charles University and Psychology at the Faculty of Arts of the Charles University
As a doctoral student in the fields of Zoology at the Faculty of Science, Charles University, and Psychology at the Faculty of Arts, Charles University, he is engaged in research on sexual orientation. He is interested in (not only) biological factors contributing to its development and psychological differences among individuals of different sexual orientations. These topics are also the focus of his dissertation projects, in which he explores the influence of prenatal maternal factors on the development of homosexuality in men and women, as well as differences in mental health among people with various sexual orientations. He is becoming a scientist under the supervision of Jan Havlíček and Zuzana Štěrbová. He is currently employed as an assistant professor at the Department of psychology and life sciences, Faculty of Humanities, Charles University.
Links
Publications
Fort, J. (2026). Fraternal birth order effect and other sibship effects in bisexual and asexual men and women. Archives of Sexual Behavior . https://doi.org/10.1007/s10508-026-03536-9
Fořt, J., Valentova, J.V., Hudáčová, K., Kunc, B., & Havlíček, J. (2025). An evolutionary perspective on homosexuality: Testing the sexually antagonistic genes hypothesis through familial fertility analysis. Evolution and Human Behavior , 46(1), 106649. https://doi.org/10.1016/j.evolhumbehav.2024.106649
Tureček, P., Fort, J., & Flegr, J. (2025). Crusaders, monks and family fortunes: Evolutionary models of male homosexuality and related phenomena. Proceedings of the Royal Society B: Biological Sciences , 292(2042), 20242756. https://doi.org/10.1098/rspb.2024.2756
Fořt, J., Kunc, B., Valentova, J.V., Bártová, K., & Hudáčová, K. (2024). Examining the fraternal birth order effect and sexual orientation: Insights from an East European population. Archives of Sexual Behavior , 53(8), 2905– 2922. https://doi.org/10.1007/s10508-024-02892-8
Fořt, J., & Kaňková, Š. (2021). Etiology and evolutionary theory of male homosexuality. Czechoslovak Psychology , 65, 537–557. https://doi.org/10.51561/cspsych.65.6.537