News tagged with males
UK children need more volunteer male befrienders
Many boys say they would prefer a male befriender according to early findings, funded by the Economic and Social Research Council (ESRC). Yet, less than a quarter of UK volunteer child befrienders are men.
Other Sciences / Social Sciences
20 hours ago |
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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) |
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Velvet spiders emerge from underground in new cybertaxonomic monograph
Velvet spiders include some of the most beautiful arachnids in Europe and some of the world's most cooperative species. Social species can be very abundant in parts of tropical Africa and Asia with conspicuous co ...
May 23, 2012 |
5 / 5 (4) |
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Crabs will fake it to avoid a fight, research finds
Dr Robbie Wilson, Head of the Performance Lab at the University of Queensland, where this study was conducted, said the research identified more than just some crabby behaviour.
May 16, 2012 |
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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 |
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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) |
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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) |
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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 |
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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 |
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Forensic science used to determine who's who in pre-Columbian Peru
Analysis of ancient mitochondrial DNA (mtDNA) has been used to establish migration and population patterns for American indigenous cultures during the time before Christopher Columbus sailed to the Americas. ...
Apr 23, 2012 |
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Green-glowing fish provides new insights into health impacts of pollution
Understanding the damage that pollution causes to both wildlife and human health is set to become much easier thanks to a new green-glowing zebrafish. Created by a team from the University of Exeter, the fish ...
Apr 18, 2012 |
5 / 5 (2) |
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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) |
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Many lower-skilled men find employment precarious
(PhysOrg.com) -- The U.S. unemployment rate of about 8 percent masks a far greater problem: the precarious situation of working-age men with modest education and few job skills, new analysis from the La Follette School of ...
Other Sciences / Economics & Business
Apr 04, 2012 |
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Student researchers help discover world's smallest frog
When two Cornell undergraduates and a recent graduate went on a field research trip to Papua New Guinea in 2008, little did they know it would lead to entries in the Guinness Book of World Records and a groundbreaking ...
Mar 30, 2012 |
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Male
Male (♂) refers to the sex of an organism, or part of an organism, which produces small mobile gametes, called spermatozoa. Each spermatozoon can fuse with a larger female gamete or ovum, in the process of fertilization. A male cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually.
Not all species share a common sex-determination system. In humans and most animals, sex is determined genetically but in other species it can be determined due to social, environmental, or other factors. The existence of two sexes seems to have been selected independently across different evolutionary lineages (see Convergent Evolution). Accordingly, sex is defined operationally across species by the type of gametes produced (ie: spermatozoa vs. ova) and differences between males and females in one lineage are not always predictive of differences in another.
Male/Female dimorphism between organisms or reproductive organs of different sexes is not limited to animals; male gametes are produced by chytrids, diatoms and land plants, among others. In land plants, female and male designate not only the female and male gamete-producing organisms and structures but also the structures of the sporophytes that give rise to male and female plants.
For more information about Male, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
