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: The [[offspring]] begin as an [[embryo]] and become a [[foetus]] inside the [[uterus]] of the [[female]] before being [[born]].
: Young [[mammal]]s cannot reproduce until they have gone through [[puberty]].
: [[Female]] [[mammal]]s have a [[Menstrual Cycle|menstrual cycle]] and [[Mammary GlandsGland|mammary glands]] which produce milk for their [[offspring]].