To learn more about this topic, start your googling with these keywords:

• Mammal: Endothermic vertebrates that nurse their young.
• Lactation: The secretion of milk by the mammary glands.
• Mammary Gland: A cluster of alveoli and ducts that secretes milk.
• Mammary Alveoli: The tiny sacs that are the site of milk production and storage in the mammary gland.
• Oxytocin: A hormone released by the pituitary gland that - among other things - causes the milk ejection reflex during nursing.
• Holstein: A large black and white cow known for the large quantities of milk it yields.

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