Any action of an animal intended to injure an opponent or prey animal or to cause an opponent to retreat. Aggression may be caused by various stimuli. Within its own group, an animal must display aggressive postures to maintain its position within the hierarchy (e.g., the pecking order of chickens). A threat by itself, as in ruffled feathers or teeth revealed in a snarl, is usually sufficient to maintain an already-established social order. Aggression often occurs just before mating season, when males win their choice of females and territories.
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Aggressive Behaviour in High-Risk Personality Disordered Inpatients during Prison and Following Admission to Hospital
Apr 01, 2007; The frequency of aggressive behaviour before and during admission to a hospital unit designed to treat patients identified as...
How caregivers respond to aged-care residents' aggressive behaviour: a recent study of caregivers working in dementia units and residential care facilities in the Christchurch area showed most experienced verbal and physical aggression daily. There is an obvious need for further training and support for caregivers encountering these difficulties.(RESEARCH)
Aug 01, 2005; Research into violence and aggressive behaviour in residential care settings in New Zealand has been limited. As a result,...