title: Introductory address presented at the Sixth Conference of European Comparative Endocrinologists, Montpellier, 1971. General aspects and problems in comparative endocrinology.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D003445:Crustacea / Q000502:physiology; D000242:Cyclic AMP / Q000502:physiology; D004702:Endocrine Glands / Q000502:physiology*; D004777:Environment; D005246:Feedback; D006728:Hormones / Q000502:physiology*; D007313:Insecta / Q000502:physiology; D008027:Light; D018377:Neurotransmitter Agents / Q000502:physiology; D010271:Parasites / Q000502:physiology; D010828:Physiology, Comparative; D012098:Reproduction
chemical_list: D006728:Hormones; D018377:Neurotransmitter Agents; D000242:Cyclic AMP