Sex is Complicated and not a Binary
https://www.scientificamerican.com/article/beyond-xx-and-xy-the-extraordinary-complexity-of-sex-determination/Scientific American graphic describing the many characteristics which factor into one's sexual identity.
Helpful in indicating the ambiguous and bimodal nature of sex/responding to people who believes it’s as simple as XX/XY
NY Times Op-Ed from a professor of biology & gender studies
Explains the biological complexity of sex and the ways in which the Trump Administration’s attempts to legislate that complexity of of existence is both immoral and unscientific.
https://journals.sagepub.com/doi/full/10.1177/2470289718803639Description of modern scientific attitudes towards human sex.
“The view that the world’s population can be separated into a clearly defined dyadic unit of male and female is defunct; not only clinical observations, but molecular biology has established that sexual identity is on a continuum, with an enormous potential for variance”