Daily non-political popular news in brief.
Gene in male fish lures females into sex
11-14-2007 · EurekAlert!A gene has been found in male cichlid fish that evolved to lure female fish so that male cichlids can deposit sperm in the females mouths. A study in the online open-access journal BMC Biology reveals that the gene is associated with egg-like markings on the fins of cichlid fishes and uncovers the evolutionary history of these markings, which are central to the success of the fishes' exotic oral mating behavior.
Read more »
Keywords: gene, male, fish, lures, females, sex, lure, female
« Previous | Next »
Similar news on "Gene in male fish lures females into sex":
- With fruit fly sex, researchers find mind-body connection
11-30-2006 · EurekAlert!
The fruit fly gene "doublesex" is responsible for ensuring that male flies look male and females look female. New Brown University research led by biologist Michael McKeown shows that doublesex not only helps shape bodies but also shapes behavior, acting with together with the gene "fruitless" to guide flies' courtship routines and responses. The finding, published in Nature Genetics, shows that sexual development in flies -- and, perhaps, in humans -- is a more complicated proposition than previously thought.
Similar news · Read more »
- Vaginal reconstruction not needed for most inter-sex females, Hopkins study shows
10-27-2007 · EurekAlert!
Dispelling a common myth, researchers from the Johns Hopkins Children's Center say vaginal reconstruction should be a matter of preference for most teens or adult women born with a type of inter-sex condition marked by the presence of both female and male genitals.
Similar news · Read more »
- Sex in the morning or the evening?
06-25-2007 · EurekAlert!
Male fowl are more sexually active in the evening when fertilization is more likely, but females change depending on the population. Females solicit sex in the evening in female-biased populations, where females have more control. However, in male-biased populations, male sexual harassment of females is intense, especially in the evening, so females solicit sex early in the morning and avoid males in the evening.
Similar news · Read more »
- Cardio exercise benefits in male vs. female hearts
08-08-2007 · EurekAlert!
A new study examining chronic exercise in male and female mice finds that moderate long-term exercise provokes a sex-dependent cardiac adaptation that is different for females versus males. The findings may eventually help improve treatment strategies for women and men with heart disease.
Similar news · Read more »
- Hearts of male and female rainbow trout are different
04-30-2007 · EurekAlert!
A new study expands upon previous findings that sex differences in cardiac performance and metabolism exist in fish in general, and have now been found to occur in rainbow trout in particular.
Similar news · Read more »
- Rheumatoid Arthritis And Sex Differences
09-29-2006 · ScienceDaily
To thoroughly investigate sex differences in RA, a team of researchers turned to families with a history of the disease among both their female and male members. The results indicate that male sex exerts a significant influence on underlying RA mechanisms, particularly the production of anti-CCP antibodies.
Similar news · Read more »
- Sex is thirst-quenching for female beetles
08-28-2007 · EurekAlert!
Female beetles mate to quench their thirst according to new research by a University of Exeter biologist. The males of some insect species, including certain types of beetles, moths and crickets, produce unusually large ejaculates, which in some cases can account for around 10% of their body weight. The study shows that dehydrated females can accept sexual invitations simply to get hold of the water in the seminal fluid.
Similar news · Read more »
- The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better
04-09-2007 · EurekAlert!
Female stem cells derived from muscle have a greater ability to regenerate skeletal muscle tissue than male cells, according to a study at Children’s Hospital of Pittsburgh of UPMC.
Similar news · Read more »
- Females more prone to brain damage from alcohol abuse
07-25-2007 · EurekAlert!
Alcoholism has traditionally been considered a male disease because there are many more alcoholic males than females. But a study by researchers at Oregon Health & Science University and the Portland Veterans Affairs Medical Center suggests that women are more prone to brain damage from alcohol abuse than men. The study found that female mice are more susceptible to neurotoxic effects of alcohol withdrawal, including significantly increased brain cell death, than male mice.
Similar news · Read more »
- Ladies First: Genes skew sex ratios in evolutionary struggle
11-10-2007 · Science News Online
A gene in fruit flies favors the birth of females, until another gene comes along to restore balance between the sexes.
Similar news · Read more »
