We — an international team of scientists who specialize in human genetics — set out to study the role of genetics in shaping sexual behavior by using information provided by nearly half a million research participants. Here we describe the rationale, methodology, and findings of the largest study of same-sex sexual behavior to date

This website has been developed drawing on feedback from LGBTQ outreach and advocacy groups, dozens of LGBTQ rights advocates and community members, and workshops arranged by Sense about Science where representatives of the public, activists, and researchers discussed the results of the study.

We are committed to open science: We preregistered the study, made available code to reproduce the main figures, are committed to sharing the summary-statistics from the study, and made the article freely available here.