Whey is the main ingredient in protein powder.

She bought a new bra.

She is now preparing to wean her son.

Weaning a baby is a difficult task for parents as well.

Chyle is what you get when digested fat mixes with lymph fluid.

The color of the areola varies from person to person.

She is the owner of a 'kijitsu'.

It's a natural phenomenon for newborns to secrete witch's milk.

This cheese is made from ewe's milk.

This fossil has very well-preserved mammary tubercles.