Navigation Links
Male rivalry increases when females at most fertile, say researchers

Men become more jealous of dominant males when their female partner is near ovulation, researchers at the University of Liverpool have found.

Previous studies have found that women's preferences for male physical appearance vary according to their fertility status. During ovulation women tend to find masculine looking men more attractive and prefer their voices and odour. During this fertile phase women are more likely to have an affair with a masculine-looking man, as their features are linked to high testosterone levels, demonstrating good genetic qualities that can be passed on to offspring.

New research at the University has found that men sense this preference shift in their female partners and find masculine men more threatening during their partner's most fertile phase. Rob Burriss and Dr Anthony Little, from the University's School of Biological Sciences, also found that men only behave in this way if their female partner does not use oral contraception ?and is therefore more fertile.

Images of male faces that were either high or low in dominant features, such as a strong jaw lines and thinner lips, were shown to male participants who provided ratings of dominance for each image. A dominant person was defined as someone who looked like they could 'get what they wanted'.

Participants were asked to provide information on whether or not their female partner used oral contraception and the date of her current or previous menses. Male participants whose partners did not use oral contraception and were near ovulation rated masculine faces more dominant than those participants with partners who did use oral contraception and were not near ovulation.

Rob Burriss, from the University's School of Biological Sciences, explains: "'Groups of animals, such as chimpanzees, can live quite happily together, but when a female is ready to mate the two dominant males within the group become rivals and fight for her attention. Simi
'"/>

Source:University of Liverpool


Page: 1 2

Related biology news :

1. Sexual cooperation: Mating increases longevity in ant queens
2. Global warming increases oyster sensitivity to pollution
3. Prenatal exposure to famine increases risk of schizophrenia
4. Gene increases risk of tuberculosis
5. Lack of a key enzyme dramatically increases resistance to sepsis
6. Variation in bitter-taste receptor gene increases risk for alcoholism
7. Gene variation increases SIDS risk in African Americans
8. Single cell amoeba increases MRSA numbers 1000- fold
9. Mosquito spray increases toxicity of pyrethroids in creek, study finds
10. Tropical forest CO2 emissions tied to nutrient increases
11. Pak1 expression increases tamoxifen resistance in breast cancer patients
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Male rivalry increases when females most fertile say researchers

(Date:11/6/2014)... is an asset for a predator. Except when that predator ... tiger beetle, relative to its size, is the fastest creature ... body lengths per second (at about five miles per hour). ... take the sprinting gold from the tiger beetle, a person ... The tiger beetle has a problem. At peak speeds, everything ...
(Date:11/4/2014)... University of Utah engineers developed the first room-temperature fuel ... electricity without needing to ignite the fuel. These new ... off-grid power and sensors. , A study of the ... Society journal ACS Catalysis . , Fuel cells ... a fuel and an oxygen-rich source such as air. ...
(Date:11/4/2014)... OXFORD, England , November 4, 2014 ... expansion and vertical market growth   Fuel3D ... it has closed a funding round totaling $6.4 million (£4 ... (£1.6 million) funding secured earlier this year and paves the ... product in 2015. The funding round was led ...
Breaking Biology News(10 mins):The tiger beetle: Too fast to see 2Jet-fueled electricity at room temperature 2Fuel3D Secures $6.4 Million in Expansion Funding 2Fuel3D Secures $6.4 Million in Expansion Funding 3
... provide statin drugs free of charge so that customers can ... Imperial College London suggest in a new study published this ... in the blood. A wealth of trial data has proven ... attack risk. In a paper published in the Sunday ...
... Mount Sinai School of Medicine, New York, has been ... receive a 2010 ICAAC Young Investigator Award. Sponsored ... an early career scientist for research excellence in microbiology ... postdoctoral training in Molecular Biology at Harvard University in ...
... 250 scientists, engineers, government advisers and groups concerned ... from August 15-20, 2010 to consider the impact ... University of Maryland is co-sponsoring the conference, The ... ), which is co-organized by University of Maryland ...
Cached Biology News:Free statins with fast food could neutralize heart risk, scientists say 2University of Maryland co-sponsors International Conference on the Effects of Noise on Aquatic Life 2University of Maryland co-sponsors International Conference on the Effects of Noise on Aquatic Life 3
(Date:11/26/2014)... 2014 PMG Research, Inc. announced ... is a network of sites that provide clinical research services ... million patient lives through its partnerships with large physician practices ... hub site locations in the Southeastern United States and spans ... the board will be held by: Dr. Robert ...
(Date:11/26/2014)... SonaCare Medical, a leading manufacturer of ... participated in the American Urology Association’s (AUA) surgical ... opinion leaders in urology presented on the latest ... masses while attendees had the opportunity to evaluate ... labs. Attendees at the Los Angeles, CA lab, ...
(Date:11/26/2014)... November 25, 2014 Continuing its award-winning ... earned three prestigious MarCom Awards for outstanding creative achievement ... a Platinum MarCom Award, the organization’s top honor, in ... St. Louis held in April of this year. The ... 14,000 attendees. Additionally, Nerium was awarded a Gold MarCom ...
(Date:11/26/2014)... Global biostimulants market is expected to ... estimated CAGR of 12.5%. In order to cater ... least ecological impacts, farmers are looking to adopt ... yield more effectively & efficiently. Biostimulants are consequently ... return on investments. , Leading companies in the ...
Breaking Biology Technology:PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 2SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 3Nerium International™ Wins One Platinum, Two Gold MarCom Awards 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 32019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 4
... care consulting firm with offices in Bethesda, MD and Pittsburgh, ... January 2012: , Karen Gerlach, PhD, MPH, to ... Vice President, Program Operations and Over-the-Counter Switch , Mitch ... to President , John Pinney, to Chief Executive Officer ...
... 2012 Aethlon Medical, Inc. (OTCBB: ... devices to address infectious disease, cancer and other ... an Extracorporeal Therapy Scientific Advisory Board to guide ... therapies developed from the Aethlon ADAPT™ system.  Aethlon ...
... Jan. 23, 2012 Novus International Inc., a leading ... and Verenium Corporation (Nasdaq: VRNM ), a ... commercialization of high-performance enzymes, today announced the selection of ... the two companies, strategic collaboration to advance ...
Cached Biology Technology:PinneyAssociates Announces Senior Staff Promotions 2Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 2Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 3Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 4Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 5Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 6Aethlon Medical Establishes Extracorporeal Therapy Scientific Advisory Board 7First Product Candidate Moving Toward Commercialization as Result of Novus International and Verenium Collaboration 2First Product Candidate Moving Toward Commercialization as Result of Novus International and Verenium Collaboration 3First Product Candidate Moving Toward Commercialization as Result of Novus International and Verenium Collaboration 4First Product Candidate Moving Toward Commercialization as Result of Novus International and Verenium Collaboration 5
... aptamer screening and binding optimization and built ... on-chip synthesis platform. These microarrays are available ... Microarray Service. Probe Content ... greater than 1500 known aptamer sequences. Add ...
... provides a comprehensive epitope analysis service ... on Paraflo microfluidic chips for immunological ... This comprehensive service includes assistance with ... sample(s) provided by you, single or ...
... Parkers MX80 family of positioners, offering longer travel ... patterns mimic the MX80 family, allowing users to ... to build multi-axis systems., , Miniature linear ... Accelerations to 5 gs , Velocities to 3 ...
... step in the evolution of laboratory automation. ... delivers labware to multiple laboratory instruments, LabLinx ... throughput of ordinary microplate robots. It allows ... configurations to meet any labs specific automation ...
Biology Products: