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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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ScienceShot: Hairy Men Make Good Bedbug Catchers
13 December 2011 7:02 pm
When it creeps into your bed at night and crawls across your skin, the bedbug (inset) has to navigate a forest of body hair before plunging its proboscis into your flesh for a meal. One wrong step, and it could get smushed. Tickled by the question of how people detect such microscopic pests, researchers recruited 19 volunteers with various amounts of body hair and shaved one of each of their arms. They then asked the subjects to look away while they dropped bedbugs onto their arms. The volunteers hit a button as soon as they felt something crawling on them. Participants, especially men, with more hair follicles per square inch and whose body hairs were longer, tended to be several seconds quicker than less hirsute individuals to notice the bugs on their unshaven arms, the researchers report online today in Biology Letters. And everyone took a long time to notice the bedbugs on the shaved arm. That might explain why humans still have hair on their bodies, the researchers conclude, since we no longer need it for keeping warm.
See more ScienceShots.