The influence of the social environment on sexual maturation in male mice.
D000818:Animals; D001835:Body Weight; D004777:Environment; D004822:Epididymis / Q000033:anatomy & histology; D008297:Male; D051379:Mice; D009929:Organ Size; D011155:Population Control; D012669:Seminal Vesicles / Q000033:anatomy & histology; D012726:Sexual Behavior, Animal; D012919:Social Behavior; D013737:Testis / Q000033:anatomy & histology / Q000254:growth & development*