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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...
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ScienceShot: Social Life Starts in the Womb
12 October 2010 1:00 pm
It may win the prize for the strangest place to get a back massage. The womb provides the first opportunity for touchy-feely social bonding, according to new research published in PLoS ONE. Scientists tracked the motion of five pairs of twin fetuses using ultrasonography, an imaging technique that visualizes internal body structures. By the 14 th week of gestation, the fetuses began reaching toward their partners, and just 4 weeks later, they spent more time touching their neighbors than themselves or the walls of the uterus. In all, almost 30% of their movements were directed toward their prenatal companions. These movements, such as stroking the head or back, last longer and are more accurate than self-directed movements, such as touching their own eyes or mouths. The findings suggest that twin fetuses are aware of their counterparts in the womb and prefer to interact with them. Or as the authors put it, they're "wired to be social."
See more ScienceShots.