Specialized [[organ]]s in [[mammal]]s that produce [[milk]] to nourish the young.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Functional glands organs are generally found in females, although in some species (such as some bats, some goats) males also are able to lactate using these glands. Mammary glands are a specialised evolution of [[sweat glands]] - an intermediate stage can be seen in [[monotremes]], a class split from early mammals before the evolution of true mammary glands which nourish their young from unmodified sweat glands.
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Specialized [[organ]]s in [[mammal]]s that produce [[milk]] to nourish the young.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Functional glands organs are generally found in females, although in some species (such as some bats, some goats) males also are able to lactate using these glands. Mammary glands are a specialised evolution of [[sweat glands]] - an intermediate stage can be seen in [[Monotremes]], a class split from early mammals before the evolution of true mammary glands which nourish their young from unmodified sweat glands.