Tag Archive for 'Aggression'

Examples of bonobo and chimpanzee reassurance behaviors. Image credit: Z. Clay / J.S. Brooker.

Hugs May Be an Ancient Peacekeeping Tool, Ape Study Suggests

Jul 22, 2026 by News Staff

In a new study of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus), scientists found that embraces, touches and other reassuring gestures before...

Infrared thermographic image taken from FLIR Tools, showing an aggressive encounter between two juvenile pheasants (middle right of the image). The scale at the top indicates the color coding of temperatures, while the red, upwards-pointing triangles automatically pinpoint the maximum temperature within a selection box drawn manually around each pheasant’s head. Here, the aggressor on the left (Bx1), with a maximum head temperature of 37.5 degrees Celsius, has just delivered an aggressive peck to the recipient on the right (Bx2), who has a maximum head temperature of 35.7 degrees Celsius. The background reference temperature is 26.5 degrees Celsius, taken from a white plastic drinker filled with water (Sp1), suspended above the pen floor (top left of image). Image credit: Sophia et al., doi: 10.1098/rstb.2020.0442.

Study: Aggressive Interactions Induce Rapid Temperature Changes in Pheasants

Jan 10, 2022 by News Staff

In a new study, researchers from the University of Exeter and the University of Plymouth monitored thermographic changes in captive flocks of juvenile...

Kjærvik & Bushman found the best evidence to date that narcissism is an important risk factor for both aggression and violence.

Narcissism is Important Risk Factor for Aggression, New Review Suggests

May 25, 2021 by News Staff

A review of 437 previous studies, published recently in the journal Psychological Bulletin, found that individuals with high levels of narcissism are prone...

This study is the first to show that omega-3 supplementation in children can reduce inter-partner psychological aggression among adult caregivers not receiving supplements. Image credit: Steve Buissinne.

Study: Omega-3 Supplementation in Children Could Reduce Psychological Aggression among Adults

Jul 31, 2018 by Enrico de Lazaro

New research by scientists from the University of Massachusetts Lowell and elsewhere shows how omega 3-rich diet can prevent disruptive, even abusive behavior. This...