Aggressive in the context of "Agonistic behavior"

A monster is a type of imaginary or fictional creature found in literature, folklore, mythology, horror, fantasy, fiction and religion. They are very often depicted as dangerous and aggressive, with a strange or grotesque appearance that causes terror and fear, often in humans. Monsters usually resemble bizarre, deformed, otherworldly and/or mutated animals or entirely unique creatures of varying sizes, but may also take a human form, such as mutants, ghosts, spirits, vampires or zombies, among other things. They may or may not have supernatural powers, but are usually capable of killing or causing some form of destruction, threatening the social or moral order of the human world in the process.

Animal monsters are outside the moral order, but sometimes have their origin in some human violation of the moral law (e.g. in the Greek myth, Minos does not sacrifice to Poseidon the white bull which the god sent him, so as punishment Poseidon makes Minos' wife, Pasiphaë, fall in love with the bull. She copulates with the beast, and gives birth to the man with a bull's head, the Minotaur). Human monsters are those who by birth were never fully human (Medusa and her Gorgon sisters) or who through some supernatural or unnatural act lost their humanity (werewolves, Frankenstein's monster), and so who can no longer, or who never could, follow the moral law of human society.

Hostility is seen as a form of emotionally charged aggressive behavior. In everyday speech, it is more commonly used as a synonym for anger and aggression.

It appears in several psychological theories. For instance it is a facet of neuroticism in the NEO PI, and forms part of personal construct psychology, developed by George Kelly.

A violent crime, violent felony, crime of violence or crime of a violent nature is a crime in which an offender or perpetrator uses or threatens to use harmful force upon a victim. This entails both crimes in which the violent act is the objective, such as murder, assault, rape and assassination, as well as crimes in which violence is used as a method of coercion or show of force, such as robbery, extortion and terrorism. Violent crimes may, or may not, be committed with weapons. Depending on the jurisdiction, violent crimes may be regarded with varying severities, ranging from harassment, manslaughter, to murder.

Violent criminals who use hostile acts towards others include killers, active shooters, kidnappers, robbers, sex offenders, burglars, arsonists and torturers. Another category of violent criminals are pirates and hijackers of cars or aircraft. Criminal organizations, gangsters and drug cartels frequently employ violent criminals in their group, usually as enforcers or hitmen. Violent criminals often display characteristics such as low anger threshold, disinhibition/absence of impulsivity control, strong dominance/territorial instinct, antisocial personality, psychological/mental health issues and aggressive tendencies which enable them to carry out usually violent acts.

Agonistic behaviour is any social behaviour related to fighting, which can include aggressive behaviour, but also threats, displays, retreats, placation, and conciliation. The term "agonistic behaviour" was first defined and used by J.P. Scott and Emil Fredericson in 1951 in their paper "The Causes of Fighting in Mice and Rats" in Physiological Zoology. Agonistic behaviour is seen in many animal species because resources including food, shelter, and mates are often limited.

Ritualized aggression or ritualized fighting is when animals use a range of behaviours as posture or warning but without engaging in serious aggression or fighting, which would be expensive in terms of energy and the risk of injury. Ritualized aggression involves a graded series of behaviours or displays that include threatening gestures (such as vocalizations, spreading of wings or gill covers, lifting and presentation of claws, head bobbing, tail beating, lunging, etc.) and occasionally posturing physical actions such as inhibited (non-injurious) bites. This behavior is explained by evolutionary game theory.

Peer victimization is harassment or bullying that occurs among members of the same peer group. It is often used to describe the experience among children or young people of being a target of the aggressive and abusive behavior of other children, who are not siblings and not necessarily age-mates.