title: The menstrual cycle and sexual behaviour in a troop of free ranging chacma baboons (Papio ursinus).
mesh_terms: D000818:Animals; D003307:Copulation; D004542:Ejaculation; D005260:Female; D000882:Haplorhini; D008297:Male; D008598:Menstruation; D009948:Orgasm; D012098:Reproduction; D012726:Sexual Behavior, Animal; D012867:Skin; D013997:Time Factors