On: Boys and Girls may get different breast milk

[jurjenh]

I could imagine some sort of organ senses - child has certain hormones (eg testosterone) in salive, and certain receptors on the nipple pick up on these hormones and then tailor the milk.

Note that I have no basis for this claim, but one of the many ways the body communicates is through hormones, so it certainly wouldn't be outside the realms of possibility...