title: Reciprocity in neuroendocrine and evolutionary approaches to the study of reproductive behavior.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004702:Endocrine Glands / Q000502:physiology*; D014644:Genetic Variation; D009424:Nervous System Physiological Phenomena; D012098:Reproduction; D012726:Sexual Behavior, Animal / Q000502:physiology*