https://www.joshuakennon.com/the-six-common-biological-sexes-in-humans/
https://gendersociety.wordpress.com/2017/07/13/two-legal-sexes-arent-enough-why-governments-should-recognize-non-binary-bodies-and-identities/
https://nomadicecologist.wordpress.com/2017/04/24/no-science-does-not-say-there-are-only-two-genders/
https://www.psychologytoday.com/blog/gender-science/201701/three-gender-myths-almost-everyone-believes-shouldn-t
None of theese are from SJW or feminist sites