Olympian Dutee Chand has drawn the spotlight not just for being one of the fastest Indian female runners ever: in 2014, she was banned after failing a “gender test.” 

The digital album.

If gonads are magical, and male and female are blurry categories, how the hell do you tell young people about the birds and the bees?

When Dana Zzyym applied for their first passport in 2014, there was one question they couldn’t answer: male or female? This episode, biological realities and the power of words.

Science pushes back against the century-old notion that X equals girl and Y equals boy, and wonders: are we who we think we are?

When Annie Dauer was diagnosed with non-Hodgkin’s lymphoma at 29, she took a chance on an experimental fertility procedure that sounds like science fiction: ovary freezing.

Deep inside the human embryo, a band of nomadic cells embarks on an epic journey, with the future of humanity resting on their microscopic shoulders.