Any behavior associated with conflict between two individuals.

Social structure of a group as it relates to the relative social rank of dominance status of its members. (APA, Thesaurus of Psychological Index Terms, 8th ed.)

Methods of giving food to humans or animals.

Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.

The direct struggle between individuals for environmental necessities or for a common goal.

The observable response an animal makes to any situation.

Relationship between individuals when one individual threatens or becomes aggressive and the other individual remains passive or attempts to escape.

Behavior in defense of an area against another individual or individuals primarily of the same species.

Sexual activities of animals.

Any behavior caused by or affecting another individual, usually of the same species.

Behaviors associated with the ingesting of water and other liquids; includes rhythmic patterns of drinking (time intervals - onset and duration), frequency and satiety.