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:10/13/2017)... ... ... Journey: From the Mountains to the Mission Field”: the story of a missionary couple ... From the Mountains to the Mission Field” is the creation of published author, Carole ... and currently teaches a class of ladies at her church, which she has taught ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent and San Francisco dentists, ... cutting-edge Oventus O2Vent technology. As many as 18 million Americans are estimated to ... breathing. Oral appliances can offer significant relief to about 75 percent of people ...
(Date:10/12/2017)... ... , ... IsoComforter, Inc. ( https://isocomforter.com ), one of the Nation’s ... design of the shoulder pad. The shoulder pad provides optimal support and full ... while using cold therapy. By utilizing ice and water that is circulated from an ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... system that we intend to develop to enable prevention of a major side ... severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss is FDA ...
(Date:10/12/2017)... ... 12, 2017 , ... Leading pediatric oncology experts at Children’s National Health ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired ... Cancer and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017  Eli Lilly and ... financial results for the third quarter of 2017 on ... conference call on that day with the investment community ... The conference call will begin at 9 ... can access a live webcast of the conference call ...
(Date:10/2/2017)... 2017 Halo Labs announces the European launch of their ... HORIZON at MIBio 2017 in Cambridge, U.K ... matter in biopharmaceutical samples with unprecedented speed and sensitivity while using ... Backgrounded Membrane Imaging. ... subvisible particle analysis system ...
(Date:9/28/2017)... Hill-Rom Holdings, Inc. (NYSE: HRC), will host ... webcast on Friday, November 3, 2017, beginning at 7:00 ... approximately 8:30 a.m. (CDT) / 9:30 a.m. (EDT). ... performance and guidance for 2018, Hill-Rom executives will also ... performance, and long-range financial outlook through 2020. ...
Breaking Medicine Technology: