nature.com/articles/d4158…
not-binary.org/press/
quillette.com/2018/11/30/the…
scientificamerican.com/article/sex-re…
Yes, intersex exists.
Yes, even human chimeras exist (!).
No, those facts do not put the lie to binary sexual reproduction. There are two types of gametes in animals (“anisogamy”): eggs and sperm.
areomagazine.com/2018/10/02/aca…
Accepted and published in the journal Sexuality and Culture.
link.springer.com/article/10.100…
assets.documentcloud.org/documents/3914…
medium.com/@heyingh/on-th…
outsports.com/2019/2/6/18213…