the study and documentation of many aspects of non-human animal behaviors. Typically, includes ethology, behavioral ecology, and comparative psychology. May also include drug studies. Areas studied may include: animal AGGRESSION, ANIMAL COGNITION, ANIMAL COMMUNICATION, ANIMAL COURTSHIP, ANIMAL DEFENSIVE BEHAVIOR, ANIMAL EMOTIONALITY, ANIMAL GROOMING BEHAVIOR, ANIMAL MATERNAL BEHAVIOR, animal MATE SELECTION, ANIMAL PATERNAL BEHAVIOR, ANIMAL PLAY, ANIMAL SOCIAL BEHAVIOR, and parenting behavior.