Related topics: children · adolescents

For lemurs, sex role reversal may get its start in the womb

Anyone who says females are the 'gentle sex' has never met a lemur. Lady lemurs get first dibs on food, steal their mates' favorite sleeping spots and even attack males, swatting or biting those that annoy them.

Owner training key to reducing risk of dog bite injuries

Dog attacks have been on the rise and it may the owners who need to go back to school. A new study published in Risk Analysis: An International Journal investigated what leads dog owners to train their pets using positive ...

Managing the risk of aggressive dog behavior

Aggressive behaviour in pet dogs is a serious problem for dog owners across the world, with bite injuries representing a serious risk to both people and other dogs. New research by the University of Bristol has explored the ...

US climate sceptics send shivers through Arctic cooperation

For the first time in over two decades, member states of the Arctic Council failed to agree on a final declaration at their bi-annual ministerial meeting on Tuesday, due to a US refusal to mention climate change.

How gangs use social media

The menacing photos that Tevin, a young man affiliated with a Chicago street gang, posted on social media were dramatically different from the 20-year-old whom Stanford sociologist Forrest Stuart got to know during his two ...

Social insecurity also stresses chimpanzees

An international team of researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, conducted behavioral observations and collected urine samples for cortisol analysis of male chimpanzees ...

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Aggression

In psychology, as well as other social and behavioral sciences, aggression refers to behavior between members of the same species that is intended to cause pain or harm. Predatory or defensive behavior between members of different species is not normally considered "aggression." Aggression takes a variety of forms among humans and can be physical, mental, or verbal. Aggression should not be confused with assertiveness, although the terms are often used interchangeably among laypeople, e.g. an aggressive salesperson.

There are two broad categories of aggression. These include hostile, affective, or retaliatory aggression and instrumental, predatory, or goal-oriented aggression. Empirical research indicates that there is a critical difference between the two, both psychologically and physiologically. Some research indicates that people with tendencies toward affective aggression have lower IQs than those with tendencies toward predatory aggression. If only considering physical aggression, males tend to be more aggressive than females. One explanation for this difference is that females are physically weaker than men, and so need to resort to other means.

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