Navigation Links
Attractive Male Not Only Attracts but Stimulates

A recent study finds that the presence of attractive males stimulates the females to mature// early.

Scientists from the Universities of Exeter and Glasgow discovered that some females become sexually mature more quickly if they see attractive males.

The researchers studied a captive population of green swordtail fish, a species native to Central America and popular in tropical aquariums. The green swordtail is named after the striking sword-like growth, which males develop on their tail-fin, so they appear larger and more attractive to females.

The females in the group that were shown males with long 'swords' reached sexual maturity earlier than those that were not by up to four months. Young males that were shown mature males with impressive 'swords' matured later than those that saw lower quality competitors. Both sexes are unconsciously using visual cues to increase their likely mating opportunities.

For females, this means maximising the quality of potential mates and for males, this means delaying maturity until there is less competition from more attractive males.

'This is the first evidence that a species adjusts its rate of sexual maturation in response to visual cues. While our study focused on green swordtail fish, it seems unlikely that this attribute is limited to this one species,' said Dr Craig Walling of the University of Exeter's School of Biosciences.

Previous studies have shown that the timing of sexual maturation can be determined by chemical stimulus from other individuals in a variety of species, including some mammals like rats and sheep. In this study the fish were kept in separate tanks so while they could see members of the opposite sex through the glass, they could not use other senses to respond to one another.

Dr Walling continues: 'It's well established that sexual maturation in swordtails is highly variable, occurring anywhere between four and 20 month
'"/>




Page: 1 2

Related medicine news :

1. Men Find Fleshy Women More Attractive When Hungry
2. Bird Flu Vaccine - Indonesia Attracts WHO Attention
3. Artificial Light Stimulates Breast Cancer Growth In Mice: Study
4. Caffeine: Stimulates Sexual Behaviour in Females
5. Breast Cancer Vaccine Stimulates Potent Immune Response to Cancer Cells
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Attractive Male Not Only Attracts but Stimulates

(Date:7/9/2014)... in policing injection drug users in Russia might ... , A study, conducted by researchers from Boston ... collaboration with St. Petersburg Pavlov State University, sought ... the health outcomes of a cohort of HIV-positive ... Those who were arrested by police were more ...
(Date:7/9/2014)... By looking at ... structure and function, personality, life experiences and genetics, researchers can ... binge drinking within the next two years. Impulsivity, hopelessness, sensation-seeking ... events and a family history of drug use contribute to ... child had had a single drink at age 14 was ...
(Date:7/9/2014)... the world have been linked to an emerging ... the National Institute for Mathematical and Biological Synthesis ... contribute. , In a series of mathematical ... hemorrhage of internal organs in frogs, could cause ... they are exposed to the virus every few ...
(Date:7/9/2014)... of Allergy and Infectious Diseases (NIAID), part of ... early-stage clinical trial of CRS3123, an investigational oral ... ( C. difficile ) infection. CRS3123 (previously known ... C. difficile growth while sparing normal intestinal bacteria. ... to 30 healthy men and women ages 18 ...
(Date:7/9/2014)... printing on prescription labels handed out by pharmacists ... in taking medication, according to new research by ... Institute for the Blind)., The study, published recently ... that labels on prescription medications dispensed by pharmacies ... legibility. , By simply following recommended guidelines for ...
Breaking Medicine News(10 mins):Health News:BU researchers relate arrests with HIV risk environment 2Health News:What drives a child to abuse alcohol? 2Health News:Study predicts ranavirus as potential new culprit in amphibian extinctions 2Health News:NIH launches Phase I clinical trial of novel drug to treat Clostridium difficile infection 2Health News:Most prescription labels fail to meet guidelines, risking dosage errors 2
... is widespread among U.S. adolescents and young adults ages 14 ... the University at Buffalos Research Institute on Addictions (RIA). ... the first national survey of its kind show problem gambling ... (for example, gambling more than you intended or stealing money ...
... Vascular Insights LLC announced,today that it has received ... (FDA) to market its ClariVein(TM) infusion catheter for,infusion ... ClariVein(TM) is a percutaneous, 2 2/3 Fr (0.035") ... that enhances fluid dispersion in the,treatment area., ...
... 6 Epitomics, Inc. announced,today that its Hangzhou ... and production of its novel line of rabbit ... standard for quality management and ultimately the finest ... Dr. Guo-Liang Yu,President and CEO of Epitomics, Inc., ...
... Care Management: Making a ... Difference Today and Tomorrow, HARRISBURG, ... Medical Officer, will deliver the clinical keynote,address on Wednesday afternoon, ... the World of Care Management. Dr. Petrulis will,present Care Management: ...
... at dilated veins seen with cirrohosis but aren,t sensitive ... New noninvasive methods to detect esophageal bleeding in people ... Italian and American researchers. , About 25 percent of ... are extremely dilated veins commonly seen with cirrhosis. Variceal ...
... bowel movement, serious complications can follow, experts note , , ... have identified a marker that might predict which pregnant ... is essentially a baby,s first bowel movement, excreted in ... It is considered a sign of fetal distress. A ...
Cached Medicine News:Health News:Estimated 750,000 problem gamblers among America's youth 2Health News:Estimated 750,000 problem gamblers among America's youth 3Health News:Epitomics receives ISO 9001 certification for the production of Rabbit Monoclonal Antibodies. 2Health News:KePRO's Chief Medical Officer to Deliver Clinical Keynote Address 2Health News:Noninvasive Procedures Show Promise for Esophageal Bleeding 2Health News:Doctors Discover Marker for Meconium Passage During Delivery 2
(Date:1/14/2014)...  Luminex Corporation (Nasdaq: LMNX ) today announced that ... 2013 on Monday, February 3, 2014. A press release announcing ... trading. (Logo: http://photos.prnewswire.com/prnh/20100104/LUMINEXLOGO ) ... highlights and financial results for the fourth quarter and twelve ...
(Date:1/14/2014)... , Jan. 14, 2014 /PRNewswire-iReach/ -- Acumed,s new SLIC ... guide with accompanying instrumentation to place and insert the ... the soft tissue (e.g. ligament) repair or reconstruction as ... heals. (Photo: http://photos.prnewswire.com/prnh/20140114/MN45636 ) ...
(Date:1/14/2014)... VALHALLA, N.Y. , Jan. 14, 2014   Oligomerix, Inc. ... disease modifying therapeutics for Alzheimer,s disease (AD) and related ... headquarters to Valhalla, NY as ... additional laboratory space at New York Medical College. ...
Breaking Medicine Technology:Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 3Acumed introduces the Scapho-Lunate Inter Carpal (SLIC) Screw System 2Acumed introduces the Scapho-Lunate Inter Carpal (SLIC) Screw System 3Oligomerix Relocates Corporate Headquarters and Secures Additional Laboratory Space from New York Medical College 2
... June 22, 2011 CardioFocus, Inc., developer of the ... atrial fibrillation (AF), announced today that its technology will ... upcoming European Heart Rhythm Association (EHRA) EUROPACE 2011 congress, ... EAS is a unique catheter ablation technology that incorporates ...
... SHENZHEN, China, June 22, 2011 /PRNewswire-Asia/ -- Winner Medical Group ... Company"), a leading manufacturer of medical dressings, medical disposables and ... today announced the Company,s management team will present at the ... to be held on June 27 and 28, 2011 at ...
Cached Medicine Technology:CardioFocus HeartLightâ„¢ Endoscopic Ablation System to be Featured at EHRA EUROPACE 2011 2CardioFocus HeartLightâ„¢ Endoscopic Ablation System to be Featured at EHRA EUROPACE 2011 3Winner Medical to Present at Brean Murray, Carret & Co. Beijing China Growth Conference 2Winner Medical to Present at Brean Murray, Carret & Co. Beijing China Growth Conference 3
The most versatile 90 full field perimeter for static- and kinetic perimetry. It incorporates standard White-on-White and Blue-on-Yellow static perimetry. Octopus 101 covers all the needs in clinics ...
Automatic tangent screen with plane type central field tester. Static, quantitative perimetry....
... The Humphrey Matrix represents the ... Using frequency doubling technology, the Humphrey ... thorough visual field evaluation and assess ... enables you to provide complete long-term ...
Preference Toric quarterly planned replacement lenses are durable, easy to handle and virtually maintenance free. Meeting the needs of those suffering from astigmatism, these soft contact lenses are ...
Medicine Products: