TED speakers share their personal experiences and research on the biology of sex, showing that it is far more complicated than simply male and female.

In today's world, we are increasingly aware of gender identity, and put more thought into the pronouns we use.

There is a growing understanding of gender beyond the strict binary of male and female, yet most of us still think of the biology of sex in terms of XX or XY.

In this TED Radio Hour, we learn how the science behind sex is more complicated than we might think.

Artist Emily Quinn, journalist Molly Webster, neuroscientist Lisa Mosconi, and structural biologist Karissa Sabonmatsu share their insights into the science of sex, showing that we all exist on a spectrum.