Comparative behavioral endocrinology.
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D005075:Biological Evolution; D004330:Drosophila / Q000502:physiology*; D004702:Endocrine Glands / Q000502:physiology*; D008116:Lizards / Q000502:physiology*; D009424:Nervous System Physiological Phenomena; D012098:Reproduction; D012726:Sexual Behavior, Animal / Q000502:physiology; D012911:Snakes / Q000502:physiology*