Become a member
Quick Registration
Full Registration Benefits -
Free Homepages for Doctors
Free Homepages for Hospitals
Free Homepages for Medical Conference
Free Homepages for NGO's
Personal Health Record Creation
Access to all Medical Slides
Access to all Jobs & Products Sale
Genital Complexities Do Matter When It Comes to Hooking Up With Opposite Sex | |
Evolutionary biologist Michal Polak and co-author Arash Rashed, now at the University of California, Berkeley have said that genitalia complexities in some male species have developed because they assist the male in "holding her securely."
Polak said that he would be using the laser in a variety of ways in his research.
The study showed that without a doubt among the fruit fly species Drosophila bipectinata Duda, the males' penile peculiarities assisted them in copulation.
The researchers used a laser ablation technique to cut off tiny "intromittent" spines on the genitalia of virgin male D. bipectinata Duda fruit flies.
"We refer to these genital spines as intromittent because they insert [them] into female external genitalia during copulation, and not because they insert into the reproductive tract," said the authors.
The study concluded that the male genital spines serve two functions.
When the spines were removed, the males experienced drastic reductions in ability to copulate and ability to compete against rival males for mates.
However, if the males were able to copulate, they found that insemination and fertilization rates were not significantly different.
But Polak said that they still have a long way to go in their research.
"We are using the laser for a variety of projects, including to surgically excise other genital traits and the tiny but elaborate male sex 'combs' used in courtship, and to study their adaptive function in sexual selection," he added.
The study was published online in the Proceedings of the Royal Society B.
Source-ANI
RAS
| |
|
|
More News on: Sex Facts, Prostitution: Fresh Stakes in the Oldest Trade, Sexual Intercourse Facts, Safe Sex, Top Ten Trivial Sex Facts, Top Ten Sex Tips for Men
 Comment & Contribute
|
Related Links
Sexual Deviance - Paraphilia - Rape - Incest - Legal Issues - Treatment
Sexual deviance includes a range of abnormal sexual expression from fetishism, cross dressing, sexual sadomasochism to pedophilia, incest and rape at ...
XY Females - Women or Men - Intersex and Sports - Honor and Shame
All hell broke loose for Semenya, the South African athlete when laboratory tests proved that she was more a male than a ...
Persistent Sexual Arousal Syndrome (PSAS)
PSAS relates to women's sexual health where women experience unwanted, persistent genital arousal and orgasms don't ...
Sexual Health Related News
Scientists: Immune Cells That Suppress Genital Herpes Infections Identified
Fred Hutchinson Cancer Research Center and University of Washington scientists have identified a class of immune cells that reside long-term in the ...
Sex Superbug Could be Deadlier Than AIDS
A new and aggressive sexually transmitted superbug could prove deadly than AIDS, say doctors. According to reports, the ...
Morning-after Pill for Age 15 and Up Approved
US regulators have approved Plan B One-Step, a brand of emergency contraception for those age 15 and up without a prescription. ...
Thumbs Up for a Novel Way to Enjoy Sex
A man who is paralyzed waist down has discovered a new way to enjoy sex - through his thumb. 43-year-old Rafe Biggs fell from a roof and ...
Scientists Reveal Health Benefits of Sex
Sex carries a number of health benefits and recent study lists down some of the benefits. Sex increases your circulation, keeping the blood flowing ...
Research Explores Why Some Men Fake a Climax
A lot of women are known to lie about having reached their orgasm but research carried out by a Harvard academic has found that a surprising number ...
- Health News Index
- News Quick Links
| News Categories: |
| » | Tumour Growth Mechanism Goes a Step Further |
| » | Link Between Skin Cancer and Lower Risk of Alzheimer's Disease Identified |
| » | Molecular Profiling Timely for Tailoring Therapy Shown By First Prospective Trial |
| » | Broad Support for Rationing of Some Types of Cancer Care Found By Penn Medicine Study |
| » | Study Finds Women in 40s Continue to Undergo Routine Mammograms Despite New Recommendations |
| More Cancer News | |
|
Ask an Expert
