A Zestimate Is Not an Appraisal! This is where things get ugly. A lot of homeowners, and I suppose some in the industry, seem to get tripped up into thinking a Zestimate is an appraisal. Zillow explains right on its informational page that a Zestimate is not an appraisal, and cannot be used in place of an appraisal.
Lactorrhea, the occasional production of milk by the glands, can occur in any mammal, but in most mammals lactation, the production of enough milk for nursing, occurs only in phenotypic females who have gestated in recent months or years. It is directed by hormonal guidance from sex steroids.
This article is about the fluid produced by the mammary glands of mammals. For milk derived from plants, see Plant milk. For other uses of the word, see Milk (disambiguation). A glass of pasteurized cow's milk. Milk is a pale liquid produced by the mammary glands of mammals. It is the primary source of nutrition for infant mammals (including humans who breastfeed) before they are able to digest other types of food.