Singer Demi Lovato has announced they identify as non-binary and is changing their pronouns from she/her to they/them. Lovato took to Twitter to reveal the news and said: “Today is a day I’m so happy ...

A Princeton University anthropology professor said it is "bad science" to believe biological sex is binary – only male and female – by basing it on reproductive cells. The Ivy League professor, ...

She wasn’t especially tall. Her testosterone levels weren’t unusually high for a woman. She was externally entirely female. But in the mid-1980s, when her chromosome results came back as XY instead of ...