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.
Mammary Gland Design. The mammary gland is a milk-producing structure that is composed largely of fat cells (cells capable of storing fat). The fat deposits are laid down in the breast under the influence of the female hormone estrogen. Just as the surge of estrogens at adolescence encourages this process, androgens, such as testosterone, discourage it. Within the mammary gland there is a complex network of branching ducts (tubes or channels). These ducts exit from sac-like structures called lobules. The lobules in the breast are the glands that can produce milk in females when they receive the appropriate hormonal stimulation. The breast ducts transport milk from the lobules out to the nipple. The milk exits the ducts from the breast at the nipple. Picture of the anatomy of the breast.