title: The reproductive cycles of three species of opossums and other mammals in the Panama Canal Zone.
mesh_terms: D000818:Animals; D001188:Artiodactyla / Q000502:physiology; D002335:Carnivora / Q000502:physiology; D002685:Chiroptera / Q000502:physiology; D005260:Female; D008297:Male; D008394:Marsupialia / Q000502:physiology; D009893:Opossums / Q000502:physiology*; D010177:Panama Canal Zone; D011247:Pregnancy; D011323:Primates / Q000502:physiology; D012098:Reproduction; D012377:Rodentia / Q000502:physiology; D004490:Xenarthra / Q000502:physiology