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 ...
Plants & Animals
Apr 5, 2019
0
66
Scientists from the University of Turku, Finland, have found that male and female Asian elephants differ in their personality. Previous work on a timber elephant population from Myanmar has shown that Asian elephants have ...
Plants & Animals
Mar 11, 2019
1
436
Male vervet monkeys attack members of their own group to prevent them from escalating intergroup encounters into high-risk fights, or to de-escalate ongoing intergroup fights. In contrast, female monkeys use "the carrot and ...
Plants & Animals
Jun 6, 2018
0
23
Beetles that demonstrate same-sex sexual behaviour may be asserting dominance over rival males without having to resort to fighting, a new study has shown.
Plants & Animals
Mar 3, 2016
0
194
As the government and opposition seek strategies to address domestic violence, new research shows many young people are likely to blame victims and tolerate males behaving aggressively.
Social Sciences
Nov 25, 2015
0
9
Indiana University researchers have discovered a hormonal mechanism in hamsters that connects short winter days with increased aggression in females, and that it differs from the mechanism that controls this same response ...
Plants & Animals
Nov 18, 2015
0
1069
Why do animals fight with members of other species? A nine-year study by UCLA biologists says the reason often has to do with "obtaining priority access to females" in the area.
Plants & Animals
Apr 23, 2015
5
85
Nearly four decades of observations of Tanzanian chimpanzees has revealed that the mothers of sons are about 25 percent more social than the mothers of daughters. Boy moms were found to spend about two hours more per day ...
Plants & Animals
Nov 24, 2014
1
0
In a long-term study of interactions between chimpanzees in the famous Gombe National Park in Tanzania, researchers have found that males who consistently bully females tend to father more babies with their victims.
Plants & Animals
Nov 13, 2014
0
0
A group led by Professor Kazuyoshi Tsutsui and Research Associate Takayoshi Ubuka, of the Waseda University Center for Advanced Biomedical Sciences, has discovered a hormonal mechanism for controlling aggressiveness in male ...
Plants & Animals
Jan 29, 2014
0
0
