Humans arrived with bodies, reproductive biology, sexual differentiation, hormones, desire, and a developmental system considerably weirder than most of us were taught.

Then humans got fucking busy.

We built marriage, gender roles, inheritance systems, sexual morality, legitimacy, virginity rules, beauty standards, family structures, adultery laws, courtship rituals, relationship expectations, and thousands of years of meaning around biological differences.

What did biology actually do?

What did humans engineer afterward?

Bodies · sex · reproduction · sexual development · gender · desire · marriage · family · lineage · inheritance · sexual norms · double standards · personhood · historical fuckery

And whenever something is declared natural, we're going to go fucking check.