"Science is the process by which we understand nature, by which we understand our place in the world, how we all fit in," Nye says in the human sexuality episode of Bill Nye Saves the World. "We used to think it was pretty straightforward. X and a Y chromosome for males. Two Xs for females. But we see more combinations than that in real life and even for people with just two sex chromosomes, hormones can vary widely, so can anatomy. What makes someone male or female isn't so clear cut."
"People, we have to listen to the science, and the science says we're all on a spectrum," Nye says in his new show. "It's more complicated, but it's also a lot more honest and it's more interesting."