News tagged with females
Faithful females who choose good providers key to evolutionary shift to modern family, study finds
In early human evolution, when faithful females began to choose good providers as mates, pair-bonding replaced promiscuity, laying the foundation for the emergence of the institution of the modern family, a new study finds.
Other Sciences / Social Sciences
May 28, 2012 |
2.7 / 5 (6) |
5
Brightly colored bird bills indicate good health
Troy Murphy has found female bill colour reflects the health of the bird. Females with more colourful bills have higher antibody levels, indicating greater strength and the ability to fight off invaders.
May 24, 2012 |
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Female terrorists' bios belie stereotypes, study finds
Much like their male counterparts, female terrorists are likely to be educated, employed and native residents of the country where they commit a terrorist act, according to new research published by the American Psychological ...
Other Sciences / Social Sciences
May 15, 2012 |
not rated yet |
5
Living longer -- variability in infection-fighting genes can be a boon for male survival
Females of mammals (including humans) tend to outlive males, a circumstance that is usually attributed to males´ more aggressive and hence energy-depleting behaviour, especially when they compete for females. This might ...
May 11, 2012 |
1 / 5 (1) |
0
Men can rest easy -- sex chromosomes are here to stay
Fears that sex-linked chromosomes, such as the male Y chromosome, are doomed to extinction have been refuted in a new genetic study which examines the sex chromosomes of chickens.
May 08, 2012 |
4.8 / 5 (4) |
2
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New study suggests gender gap around homophobic bullying
A new study from Educational and Psychological Measurement (published by SAGE) found that when it comes to homophobic bullying, there could be a gender gap. While male victims are more likely to be bullied by male homoph ...
Other Sciences / Social Sciences
Apr 26, 2012 |
4 / 5 (1) |
2
Mantis males engage in riskier mating behavior if deprived of female access
Male praying mantises are more likely to engage in risky mating behavior if they have not had recent access to females, as reported Apr. 25 in the open access journal PLoS ONE. Female praying mantises are kn ...
Apr 25, 2012 |
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2
Discerning males remain faithful
Discerning males remain faithful ... if you are a spider. Sex for male orb web spiders (Argiope bruennichi) is a two shot affair since the act of mating destroys their genitalia. If they survive being eaten ...
Apr 24, 2012 |
4 / 5 (2) |
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Not all today's students are 'tech savvy'
A small minority of today's university students don't use email and others are confused by the array of technologies available at universities. Yet many students couldn't bear to be without their mobile phones and find themselves ...
Other Sciences / Social Sciences
Apr 23, 2012 |
not rated yet |
0
Should teachers and students be Facebook friends?
(AP) -- Should students and teachers ever be friends on Facebook? School districts across the country, including the nation's largest, are weighing that question as they seek to balance the risks of inappropriate ...
Apr 18, 2012 |
5 / 5 (1) |
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Walmart nominates Google star to board
Walmart, a bastion of mass-market retailing, turned to one of the tech world's brightest female stars to beef up its board of directors Monday, nominating Google highflyer Marissa Mayer.
Apr 16, 2012 |
5 / 5 (1) |
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Math teachers demonstrate a bias toward white male students
While theories about race, gender, and math ability among high school students have long been debated, a recent study found that math teachers are in fact, unjustifiably biased toward their white male students. This study ...
Other Sciences / Social Sciences
Apr 16, 2012 |
2.3 / 5 (3) |
2
Study finds significant skull differences between closely linked groups
In order to accurately identify skulls as male or female, forensic anthropologists need to have a good understanding of how the characteristics of male and female skulls differ between populations. A new study ...
Apr 12, 2012 |
4 / 5 (1) |
2
Teachers think white females lag behind in math, study finds
(PhysOrg.com) -- High school math teachers tend to rate white female students’ math abilities lower than those of their white male peers, even when their grades and test scores are comparable, according to a University ...
Other Sciences / Social Sciences
Apr 05, 2012 |
not rated yet |
3
Sexual objectification of female artists in music videos exists regardless of race, study finds
Popular music videos have been criticized as having misogynistic messages and images. While more female music artists have gained visibility and created successful "brands" in recent years, critics argue that many of these ...
Other Sciences / Social Sciences
Apr 04, 2012 |
2.8 / 5 (6) |
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Female
Female (♀) is the sex of an organism, or a part of an organism, which produces mobile ova (egg cells). The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male. A female individual cannot reproduce sexually without access to the gametes of a male (an exception is parthenogenesis). Some organisms can reproduce both sexually and asexually.
There is no single genetic mechanism behind sex differences in different species and the existence of two sexes seems to have evolved multiple times independently in different evolutionary lineages. Other than the defining difference in the type of gamete produced, differences between males and females in one lineage cannot always be predicted by differences in another. The concept is not limited to animals; egg cells are produced by chytrids, diatoms, water moulds and land plants, among others. In land plants, female and male designate not only the egg- and sperm-producing organisms and structures, but also the structures of the sporophytes that give rise to male and female plants.
For more information about Female, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
