News tagged with sex
From virginity to Viagra
Americans will spend more than $17 billion on Valentine's Day, but far less on programs like sex education for adolescents. The editors of the new book, Sex for Life, From Virginity to Viagra, How Sexuality Changes Throughout ...
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Parents blame child sex abuse victims more if perpetrator is another youth, research shows
Parents are much more likely to blame and doubt their children when their child has been sexually abused by another adolescent instead of an adult, according to new research from the Crimes against Children Research Center ...
Other Sciences / Social Sciences
Feb 07, 2012 |
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Sexually transmitted infections double in older population in 10 years
Sexually active adults aged 45 and over are being encouraged to pay more thought to safe sex in line with recent figures showing that STIs in 50-90 year olds have doubled in the past ten years.
Feb 03, 2012 |
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For many Indonesians, 'Fesbuk' is the only Internet
Indonesia, a developing Muslim nation which claims the world's third-largest community of Facebook users, has become a showcase for the social networking site's global power and reach.
Feb 02, 2012 |
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Sex-specific behaviors traced to hormone-controlled genes in the brain
Hormones shape our bodies, make us fertile, excite our most basic urges, and as scientists have known for years, they govern the behaviors that separate men from women. But how?
Feb 02, 2012 |
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Male spiders of one species lose their genitals after sex to increase sperm count in females
(PhysOrg.com) -- Researchers have known for some time that the male sex organ, called a palp, in orb-web spiders is often broken off during copulation with females; what hasn’t been so clear is why. ...
Feb 02, 2012 |
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South Africa recalls 1.35 million condoms
(AP) -- Some condoms burst. Others leaked like sieves. South Africa's leading anti-AIDS group said Tuesday that allegedly faulty condoms are among more than 1.35 million handed out at the African National ...
Medicine & Health / HIV & AIDS
Jan 31, 2012 |
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PNAS-published poll finds some Christians find their own political beliefs conflict with Jesus' teachings
(PhysOrg.com) -- A new online poll conducted by a team of three researchers from Stanford University has found that of those who identified themselves as Christians and who also identified themselves as either politically ...
Other Sciences / Social Sciences
Jan 31, 2012 |
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Abortion curb restores birth sex ratio in Taiwan
Taiwanese health authorities said Tuesday that tougher checks on illegal gender-selective abortions prevented nearly 1,000 terminations of female foetuses last year.
Jan 31, 2012 |
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New taste for Thai elephant meat
(AP) -- A new taste for eating elephant meat - everything from trunks to sex organs - has emerged in Thailand and could pose a new threat to the survival of the species.
Jan 27, 2012 |
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Incoming college students more liberal on hot-button political, social issues, survey finds
(PhysOrg.com) -- First-year college students' political and social views shifted in a more liberal direction in 2011, according to the CIRP Freshman Survey, UCLA's annual survey of the nation's entering students at four-year ...
Other Sciences / Social Sciences
Jan 26, 2012 |
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Kremlin TV to air Julian Assange's new show
(AP) -- Wikileaks founder Julian Assange's new talk show will be broadcast on RT, the Kremlin-funded English-language television station said Wednesday.
Jan 25, 2012 |
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Julian Assange says he's launching TV talk show
(AP) -- You've read his leaks. Now watch his show.
Jan 24, 2012 |
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Why bats, rats and cats store different amounts of fat
Animals differ in the amount of fat they carry around depending on their species, status and sex. However, the causes of much of this variation have been a mystery. The Bristol study shows that many differences can be understood ...
Jan 20, 2012 |
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Risky sex, drug acts decline in US: survey
High-risk sexual behaviors and drug habits that can increase a person's likelihood of getting HIV/AIDS are on the decline in the United States, according to a government survey released Thursday.
Jan 19, 2012 |
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Sex
In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female types (or sexes). Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.
An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.
For more information about Sex, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
