| aggression | A form of behaviour which leads to self-assertion; it may arise from innate drives and/or a response to frustration; may be manifested by destructive and attacking behaviour, by covert attitudes of hostility and obstructionism, or by healthy self-expressive drive to mastery. (12 Dec 1998) |
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| predatory | 1. Characterised by plundering; practicing rapine; plundering; pillaging; as, a predatory excursion; a predatory party. "A predatory war." 2. Hungry; ravenous; as, predatory spirits. "Exercise . . . Maketh the spirits more hot and predatory." (Bacon) 3. <zoology> Living by preying upon other animals; carnivorous. Origin: L. Praedatorius, fr. Praedari to plunder, fr. Praeda prey. See Prey. Source: Websters Dictionary (01 Mar 1998) |
| predatory behaviour | Instinctual behaviour pattern in which food is obtained by killing and consuming other species. (12 Dec 1998) |
| frustration-aggression hypothesis | The theory that frustration may lead to aggression, but that aggression is always the result of some form of frustration. (05 Mar 2000) |