There’s a very interesting piece in Nature today about how science is making it more clear than ever that the binary nature of the sexes isn’t actually binary at all — that there are a lot of gradiations in biological sexual development, brought on not only via chromosomal differentation (the old “XX” and “XY” thing) but a host of other processes. This is how people with XY chromosomes can (rarely) get pregnant and give birth, and how a man who fathered four children can be discovered to have a womb. Biology: It’s wacky.
I don’t imagine this report will make essentialists (“There’s men and there’s women and that’s it!”) particularly happy, but then it’s not actually the job of science to reinforce people’s comfort zones — or bigotries, to be less polite about it. But I look forward to the mental two-step some of these folks will take to try to cram this information into their understanding of the world, rather than to expand their understanding of the world based on this information. That should be interesting, and a little bit sad.