The influence of mature males on sexual maturation in female collared lemmings (Dicrostonyx groenlandicus).
D000311:Adrenal Glands / Q000033:anatomy & histology; D000818:Animals; D001835:Body Weight; D005260:Female; D007962:Leukocytes; D008297:Male; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology; D012377:Rodentia / Q000254:growth & development*; D012726:Sexual Behavior, Animal; D012931:Social Environment; D012934:Social Isolation; D014599:Uterus / Q000033:anatomy & histology; D014621:Vagina / Q000166:cytology; D014626:Vaginal Smears