When it comes to sex among guppies, competition is high for those at the top of the game. To get around this predicament, a recent study has shown, guppies use trickery.
Plants & Animals
Sep 9, 2013
0
0
Monkeys shy away from bystanders during copulation, irrespective of the bystanders' gender or rank. The new study, by Anne Overduin-de Vries and her team from the Biomedical Primate Research Centre in the Netherlands, also ...
Plants & Animals
Oct 30, 2012
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0
In cultures that permit men to take multiple wives, the intra-sexual competition that occurs causes greater levels of crime, violence, poverty and gender inequality than in societies that institutionalize and practice monogamous ...
Social Sciences
Jan 23, 2012
15
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(PhysOrg.com) -- Men die at higher rates than women across the lifespan. A new study suggests that this excess mortality is the price of reproductive competition.
Evolution
May 24, 2010
43
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(PhysOrg.com) -- Male physical competition, not attraction, was central in winning mates among human ancestors, according to a Penn State anthropologist.
Evolution
May 13, 2010
19
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(PhysOrg.com) -- Evolutionary biology theory predicts that males usually won't invest a lot of time raising offspring when there is a good chance they are not the fathers. Yale University researchers have found a notable ...
Plants & Animals
Oct 9, 2009
0
0
One difference between men and women has been well documented by economists, psychologists and biologists—that women are tend to be more cautious and take fewer risks. Evidence has also been gathered about how this difference ...
Social Sciences
Oct 5, 2023
0
1
The way animals compete and choose within their struggle to reproduce could have big consequences for extinction risk, according to new research from the University of East Anglia.
Evolution
Jun 19, 2020
0
4
That males are naturally promiscuous while females are coy and choosy is a widely held belief. Even many scientists – including some biologists, psychologists and anthropologists – tout this notion when interviewed by ...
Other
Jan 20, 2017
2
70
In early human evolution, when faithful females began to choose good providers as mates, pair-bonding replaced promiscuity, laying the foundation for the emergence of the institution of the modern family, a new study finds.
Social Sciences
May 28, 2012
5
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