MOOC Advertisement

Learn More:
Get An Introduction to Reproduction

Learn more about the the science of reproduction. Dr. Teresa Woodruff, creator of Repropedia, is offering a free online course exploring the world of reproduction.

Get Started!


Lactation is the process of milk secretion that occurs in female mammals in order to provide nourishment and immune protection for offspring. Lactation is dictated by the production and release of specific hormones designed to develop the ductal system of the breasts, which begins around the second trimester of pregnancy.