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Aggressionism is a philosophical theory that the only real cause of war is human aggression, which refers to the "general tendency to attack members of one's species." [1] It is argued that aggression is a natural response to defend vital interests such as territory, family, or identity if threatened. [1]
In particular, the serotonin 5-HT seems to be an influence in inter-male aggression either directly or through other molecules that use the 5-HT pathway. 5-HT normally dampens aggression in animals and humans. Mice missing specific genes for 5-HT were observed to be more aggressive than normal mice and were more rapid and violent in their ...
Humans share aspects of aggression with non-human animals, and have specific aspects and complexity related to factors such as genetics, early development, social learning and flexibility, culture and morals. Konrad Lorenz stated in his 1963 classic, On Aggression, that human
He lists a variety of aggression categories, each separately subject to natural selection, and states that aggressive behavior is, genetically, one of the most labile of all traits. He maintains that aggression is a technique used to gain control over necessary resources, and serves as a "density-dependent factor" in population control. He ...
Two years later, however, Miller [2] and Sears [5] re-formulated the hypothesis to suggest that while frustration creates a need to respond, some form of aggression is one possible outcome. Therefore, the re-formulated hypothesis stated that while frustration prompts a behavior that may or may not be aggressive, any aggressive behavior is the ...
Edward H. Hagen writes in The Handbook of Evolutionary Psychology that sociobiology is, despite the public controversy regarding the applications to humans, "one of the scientific triumphs of the twentieth century." "Sociobiology is now part of the core research and curriculum of virtually all biology departments, and it is a foundation of the ...
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The theory has variations as to what kind of violence served as the evolutionary catalyst: one-on-one aggression or group-based aggression. Several theories suggest the primary reason humans evolved bipedalism was to conserve energy while running, and to free the use of upper limbs. [citation needed] The killer ape theory posits that violence ...