The onset of materity in the mouse.
D000367:Age Factors; D000818:Animals; D003338:Corpus Luteum; D004717:Endometrium / Q000166:cytology; D004971:Estrus; D005260:Female; D005298:Fertility; D051379:Mice; D010053:Ovary / Q000502:physiology; D010060:Ovulation; D011247:Pregnancy; D014599:Uterus / Q000502:physiology