title: Photoperiodic influences on gonadal development and maintenance in the cotton rat, Sigmodon hispidus.
mesh_terms: D000818:Animals; D005260:Female; D005836:Genitalia, Female / Q000502:physiology*; D005837:Genitalia, Male / Q000502:physiology*; D008027:Light; D008297:Male; D009929:Organ Size; D010053:Ovary / Q000502:physiology; D010060:Ovulation; D010507:Periodicity; D051381:Rats; D012669:Seminal Vesicles / Q000502:physiology; D012741:Sexual Maturation; D013091:Spermatogenesis; D013737:Testis / Q000502:physiology