Navigation Links
The Chemistry Of Sexual Attraction Between Male And Female Elephants

A novel study conducted at Oregon Health & Science University and the University of Auckland in New Zealand has revealed that a perfect molecular mixture present in male-emitted pheromone // in musth (an annual period of sexual activity and increased aggression) dictates the sexual behavior of other surrounding male competitors and influences the female elephants mating interest.

The researchers argue that release of a specific proportion of two mirror images of the pheromone, frontalin, depends on whether the male elephant is mature enough and has reached a particular stage of musth.

"This study reveals the precision and specificity of inter-animal signaling possible. This is the first example, in mammals, of the use of this very precise signaling and ratio of enantiomers in signaling," said co-author L.E.L. "Bets" Rasmussen.

Enantiomers represent a pair of chemical compounds whose molecular structures are mirror images of each other. Frontalin, a pheromone discharged during musth by male Asian elephants from a temporal gland located between the eye and ear, takes two forms and is designated either with a plus or minus sign.

An analysis of the samples from six male elephants revealed that the pheromone is first detectable in the late teens, with the maximal production occurring over a 25-year life span. The frontalin enantiomers were found to be released in specific ratios depending on the age of the animal and stage of its musth. Any alteration in the ratio was found to elicit a different response from the potential female partner and other male elephants emitting the pheromone.

Until now, it has been assumed that elephants would make only one form of frontalin. The complexity associated with change of the frontalin's enantiomers ratio and the change in signal is something new that has been discovered.

When ovulating or "follicular" females, and females that were either pregnant or in a non-reproductive "luteal" phase were examined, a mild mating interest was seen when there was more of plus rather than minus form. A repulsive effect was observed when there were equal proportions of both forms.

Rasmussen added: "All of these responses and resultant behaviors are measurable in time. Not milliseconds, but seconds. We have a repertoire of follow-up behavior, such as trumpeting, running away and circling, that also can be counted and scored. Such information is translatable at the basic level to other animals," including humans.

The researchers hope to use the study's results to intensify the study further and possibly understand the mating behavior in other mammalian species.


'"/>




Related medicine news :

1. Love And Drug Addiction Share The Same Chemistry
2. Chemistry Over The Counter: Is It Just What The Doctor Ordered?
3. New Chemistry Approach Promises Less Expensive Drugs
4. Sexual abuse affect health for a lifetime
5. Hypertensive Drug Improves Sexual Dysfunction in Hypertensive Men
6. Incidence Of Sexually Transmitted Diseases Among Gay Men On The Rise
7. Testosterone Patches Found To Increase Sexual Desire In Menopausal Women
8. Condom Vending Machines Increasing Sexual Assaults On Women
9. Sexually Abused Girls Develop Eating Disorders
10. Gynaecologist Faces Stiff Prison Sentence On Counts Of Sexual Abuse
11. New Sexual Misconduct Rule Against Doctors In The US
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/13/2016)... ... , ... In the early or “honeymoon” stage of a relationship, couples strive ... their way to be romantic, and may exaggerate a strength or two in an ... profile. , A recent study from Queendom.com , however, suggests that new ...
(Date:2/12/2016)... ... February 12, 2016 , ... The law firm of ... Evangeline Parishes. The purpose of these scholarships is to encourage applicants to pursue ... to seek employment within these two parishes. , “We have available jobs in ...
(Date:2/12/2016)... ... February 12, 2016 , ... Fixed Dose Combination Drug ... p.m. EST, http://www.fdanews.com/fixeddosecombination , Fixed dose combination products ... increased attention from all stakeholders in the development of new chemical entities. , ...
(Date:2/12/2016)... ... 2016 , ... T.E.N., a technology and information security executive ... Awards 2016. Finalists and winners of the ISE® Awards for both Executive and ... Gala on March 15, 2016 at the Westin Peachtree Plaza, Atlanta. , ...
(Date:2/12/2016)... ... February 12, 2016 , ... Fisher House Foundation Chairman and ... J. Lee, Nevada Military Support Alliance president Scott Bensing, and Peggy Kearns Director, VA ... Southern Nevada Healthcare System. This will be the first Fisher House in Nevada, ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... 2016   HeartWare International, Inc . (NASDAQ: ... to discuss its financial results for the three and ... 25, 2016 at 8:00 a.m. ET.  The company plans ... call and webcast.  On the conference call and webcast, ... the fourth quarter and business outlook.   ...
(Date:2/12/2016)... -- On Thursday, Feb. 11, 2016, surgeons at the ... Austin Medical Center successfully completed the first robotic surgery ... Surgical System with Trumpf Medical,s advanced operating table, the ... M.D., colorectal surgeon at the Texas Institute for Robotic ... technology, which seamlessly combines the da Vinci Xi Surgical ...
(Date:2/12/2016)... WILMINGTON, North Carolina , 12 februari ... Laboratories, Inc. (AAI/CML), een toonaangevende leverancier van ... farmaceutische en biotechnologische industrieën, kondigt vandaag een ... en mogelijkheden op haar locatie in ... in vraag heeft geleid tot meerdere recente ...
Breaking Medicine Technology: