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Latest Promiscuity Stories

Owl Monkeys Don't Cheat
2014-03-19 14:44:02

University of Pennsylvania Intensive fathering plays a role True monogamy is rare in the animal kingdom. Even in species that appear to "mate for life," genetic maternity and paternity tests have revealed that philandering often takes place. Yet a new study by University of Pennsylvania researchers shows that Azara's owl monkeys (Aotus azarae) are unusually faithful. The investigation of 35 offspring born to 17 owl monkey pairs turned up no evidence of cheating; the male and female...

Promiscuous Female Mice Have Sexier Sons
2013-11-19 07:35:02

University of Utah Males make more pheromone if mama had access to many mates University of Utah biologists found that when mother mice compete socially for mates in a promiscuous environment, their sons play hard and die young: They attract more females by making more urinary pheromones, but smelling sexier shortens their lives. "If your sons are particularly sexy, and mate more than they would otherwise, it's helping get your genes more efficiently into the next generation,"...

Study: Sexually Promiscuous Women Don’t Make For Friends, Mates
2013-06-04 07:23:58

April Flowers for redOrbit.com — Your Universe Online A new study from Cornell University developmental psychologists reveals that college-aged women judge promiscuous female peers more negatively than more chaste women. The promiscuous women -- defined as having had 20 or more sexual partners by their early 20s -- are viewed as unsuitable for friendship. The research team notes that even when the women reported liberal attitudes about casual sex or a high number of lifetime...

Monogamy The Norm For Urban Coyotes
2012-09-26 05:26:25

Brett Smith for redOrbit.com - Your Universe Online Some women in a relationship may refer to their cheating male partners as dogs, but a new study shows that women may have to start calling their men who stray something else if they want to be more accurate. Scientists at the Ohio State University studied urban coyotes living around Chicago and found them to be 100 percent faithful to their mating partner, according to a new study in the latest edition of the Journal of Mammalogy....

2012-05-28 19:26:11

Faithful females who choose good providers key to evolutionary shift to modern family, study finds 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. The study helps answer long-standing questions in evolutionary biology about how the modern family, characterized by intense, social attachments with exclusive mates,...

Promiscuousness Results In Genetic Trade-up, More Offspring
2011-09-01 10:23:31

  It's all about the grandkids! That's what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair. Many humans find the idea of mating for life a romantic ideal, but in the natural world, non-monogamous relationships may have their benefits. According to new research published online Aug. 31 in Proceedings of the Royal Society B, IU postdoctoral research associate Nicole Gerlach and colleagues have...

2011-01-20 14:32:20

Society has long debated the contrasting advantages of monogamy and promiscuity and, in western society at least, the long term benefits of monogamy have in general won out. However new research published in BioMed Central's open access journal BMC Evolutionary Biology shows that sperm from polygamous mice are better competitors in the race for fertilisation. Dr Ren©e Firman at the Centre for Evolutionary Biology, University of Western Australia, has used house mice to show that sperm...

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2010-12-15 11:24:33

University of Guelph researchers have finally figured out why female squirrels are so darn promiscuous. Turns out it has nothing to do with genes and everything to do with how many males are knocking at their door. "Their behaviour is overwhelmingly influenced by opportunity," said graduate student Eryn McFarlane, who, along with integrative biology professor Andrew McAdam and a team of researchers from across Canada, solved a mystery that has baffled biologists for years. Their findings...

2010-11-10 18:16:41

MU researchers find that up to 70 percent of Amazonian cultures practiced multiple paternity In modern culture, it is not considered socially acceptable for married people to have extramarital sexual partners. However, in some Amazonian cultures, extramarital sexual affairs were common, and people believed that when a woman became pregnant, each of her sexual partners would be considered part-biological father. Now, a new University of Missouri study published in the journal Proceedings of...

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2010-11-03 10:00:00

Human ancestors from over four million years ago were quite promiscuous, with monogamous relationships developing as hominins evolved over time, claims a new study published in the British scientific journal Proceedings of the Royal Society B. The research, which was led by Emma Nelson of the University of Liverpool's School of Archaeology, Classics and Egyptology, involved the study of the fossilized fingers of Neanderthals and ancient apes, as well as the species Ardipithecus ramidus and...