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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: It's Official, Men Are the Dirtier Sex
30 May 2012 5:05 pm
It's true what they say: Your keyboard is crawling with bacteria. Though if you're a woman, you may have less to worry about. In a new study, researchers took swabs of a variety of office equipment in New York, San Francisco, and Tucson. They found more than 500 types of bacteria, most of which normally live on our skin or in our nasal, oral, and intestinal cavities. Chairs and phones accumulated the most bacteria, followed by desktops, keyboards, and computer mice. In a few cases, hardy microbes commonly found in hot springs and volcanic islands also appeared in the mix, perhaps tracked into the office following a vacation to St. Lucia or Yellowstone. New York and San Francisco's bacterial diversity was virtually identical despite their nearly 4700-kilometer divide, while Tucson's microbes were more variable and tended to be heavy on desert soil bacteria in addition to the human-derived species. San Francisco offices were the least contaminated. And while the offices of men and women had the same types of species, women's offices had on average 10% to 20% fewer of them. Differences in hygiene may be to blame, the team reports online today in PLoS ONE. Men are known to wash their hands and brush their teeth less frequently than women, the researchers write, and are generally "perceived to have a more slovenly nature."
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