Tag: "mating" at medical news

Choose your mate

...fruit flies are prominent for their proclivity for mating almost any time and at any place. They put some females in tubes with seven males so that female choice and male contest could come into action. The experiment was carried out on fruit flies of a wide variety of age groups. The scientists measured...

Enzyme Associated with Memory

... studied female mice and how they remembered their mating partner. They discovered that with only one exposu... exposed to her partner’s scent even a month after mating will continue her pregnancy. Investigators say this means the female memorizes her partner’s scent d...

Enzyme Associated With Memory

... studied female mice and how they remembered their mating partner. They discovered that with only one exposu... exposed to her partner’s scent even a month after mating will continue her pregnancy. Investigators say this means the female memorizes her partner’s scent d...

Fungal Infections Effectively Controlled By Light Therapy

...sion may spark infection. Light normally inhibits mating of the C. neoformans -- a potentially life-threatening human pathogen. Two genes have been identified for the response. It is said that the loss of the same genes reduces fungal infection in mice. Mice which lacked either of the light-sensing genes a...

Cure For Deafness Leads Scientist To Find How Fishes Can Hear And Hum Sounds At Same Time

... attract a mate or grunt when stressed. During the mating season, houseboat owners in San Francisco Bay have often complained about their homes vibrating from the humming fish, which sometimes can sound like a high-speed motor running underwater....

An Enzyme That Turns a One –time Experience into a long-time Memor

... studied female mice and how they remembered their mating partner. They discovered that with only one exposu... exposed to her partner’s scent even a month after mating will continue her pregnancy. Investigators say this means the female memorizes her partner’s scent d...

Sex Played A Vital Role For Evolution Of Infectious Diseases

Same-sex mating between two less harmful yeast strains might have ...is of fungal samples, the researchers suggest that mating between two less harmful fungal strains of the same sex or mating type produced the more virulent fo...

Fatherhood Found To Tame Men by Reducing Testosterone Levels

... of testosterone is believed to be associated with mating efforts associated with male to male competition regarding mate seeking while lower levels were linked with relationships, specifically with fatherhood. The findings of the study have valuable implications regarding a male’s social behavior. The lo...

The Chemistry Of Sexual Attraction Between Male And Female Elephants

...le competitors and influences the female elephants mating interest. The researchers argue that release of ...-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 observe...

Coffee May Increase Female Libido

...riment, which resulted in the time gap between two mating sessions being reduced considerably. While this may be the case in human beings also, all women may not react in the same manner. As many as 10 cups of coffee may be required for the same effect to be replicated in human beings. The experiment will...

Voice Choice: Woo Men, Strike a Deep Chord

...sculinity and men with attractive voices have more mating success than men with unattractive voices. We asked women to assess attractiveness and dominance of voices across the menstrual cycle and predicted that preference for masculinity in men's voices would be stronger when conception risk is high. Women'...

Bird Flu Fears Recede As Migratory Birds Leave

...ormal behavior. Their flight patterns, feeding and mating indicators are normal, says Master Habibullah, 65, who lives in Chanduna village close to the reserve. He has been a keen bird watcher since childhood. The good news is that Habibullah has been studying the behavior of the birds in the reserve and h...

Beauty in birds’ got to do a lot with Bird flu

...an change the size of the forehead spot during the mating season and that males that unfurl their forehead spots most are those that produce the most antibodies informs the study. So beauty is the secret to be safe from Bird flu....

Disney’s New Attraction Showcases the Discoveries of the Himalayas Expeditio

...long time, often days, to prevent other males from mating with her.? The confirmation of a new beetle species (Nicrophorus schawalleri) that specializes in burying small bird and rodent carcasses into a subterranean crypt to feed their offspring.? A new subspecies of a small mammal known as the Qinghai vole...

'Expedition Everest' Finds New Species

...long time, often days, to prevent other males from mating with her. * The confirmation of a new beetle species (Nicrophorus schawalleri) that specializes in burying small bird and rodent carcasses into a subterranean crypt to feed their offspring. * A new subspecies of a small mammal known as the Qinghai ...

Males Lifespan Shortened By Elevated Levels Of Testosterone

...ve studied testosterone levels and related them to mating systems and aggression, but very few studies have attempted to relate testosterone to fitness, that is, the combination of lifetime reproductive success and survival, in the wild or experimentally. Over nine breeding seasons, Wendy Reed (North Dakota...

Top 10 Reasons Why People Are Obese

.... * Darwinian natural selection * Assortative mating Fat people mating with fat people begets fat offspring Dr. Robert Kushner, medical director of the weight-management...

Genetic Mutation in Mice Suggests Extinct Mammoth Had Light and Dark Fur

...es the pigmentation of hair color. In laboratory mating of the different subspecies to produce genetic crosses, the UCSD scientists report in their paper that the variations of this gene account as much as 36 percent of the color variation in Gulf Coast mice. Surprisingly, however, this mutation was absen...

Environmental Pollutants Could Impact the Size of Sexual Organs

...ales. A large baculum is critical for successful mating in an Arctic climate, the researchers note, and even slight decreases may interfere with reproduction. "Furthermore, similar physiological impacts from organohalogen-pollutant exposure may be manifested on the reproductive tract of humans relying ...

Strong Evidence Suggests Incidence Of Mating Of Ancestors With Neanderthals

...7,000 years ago which could have resulted from the mating of our ancestors with the Neanderthals at some point of time during that era which has resulted eventually in the contribution of beneficial variants into the human genetic pool which have later been passed on to generation next helping to enhance br...

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