Cockroach milk is sourced from the Pacific Beetle cockroach, a type of roach that gives birth to live offspring and produces ‘milk’, which it feeds its embryos through a ‘brood sac’ (essentially a cockroach womb). There is, in fact, no actual ‘milking’ involved: scientists need to carve out the cockroach’s gut in order to access the milk, which is in the form of crystals.
Why would cockroaches HAVE milk? They don’t nurse young or anything like that
That’s somehow even worse than my original mental image. Great work science!