The UK Supreme Court's definition of a woman in equalities law has significant implications for transgender people.

It seems no clean answer presents itself – so perhaps the key is to stay messy. By all means, use proxies and correlations to ...

In a world where we seem to have less and less in common with our neighbors, it’s crucial to focus on what we share. So, here’s an easy one: We’re all human. But wait — what does that mean? Beyond the ...

What is biological sex? It seems like a question with an obvious answer: male and female, of course. You might point to internal or external sex organs, or sex chromosomes (XX for females, XY for ...