Invasive mite worsens honeybee viruses Parasite's move into Hawaiian islands lets obscure pathogen go big and bad Web edition : Friday, June 8th, 2012 A mite that parasitizes honeybees can turn formerly small-time, local virus strains into widespread, dominant hazards.
Psychologist suggests synthesthesia may underlie creature's apparent memory feats Web edition : Friday, June 15th, 2012 View the video In what seems like a blow for humanity, a very smart chimpanzee in Japan crushes any human challenger at a number memory game.
Giant celestial disk hard to explain Star's oversized debris ring challenges theories of planet formation Web edition : Friday, June 15th, 2012 ANCHORAGE, Alaska - About 80 light-years away, an enormous, dusty ring swirls around a sunlike star, with a defined inner edge that is probably sculpted by a planet orbiting at 140 times Earth's distance from the sun.
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Among teens in the USA, the percentage who have had sexual i
tercourse or say they'd be pleased if they or their partner were to get pregnant hasn't changed much since early in the decade, and there appears to be a growing acceptance of having babies outside marriage, a government report
said Wednesday.
From 1995 to 2002, "it was pretty much across-the-board improvements in those risk factors," says lead author Joyce Abma, a statistician at the Centers for Disease Control and Prevention's National Center for Health Statistics. "It is a source of concern to see that forward movement kind of stalling
Based on in-person interviews with 1,381 girls and 1,386 boys ages 15 to 19 in 2006-2008, more than four in 10 never-married teens in the USA have had intercourse at least once, Abma and her co-authors estimate. That's a slight drop from 2002, the last time the National Survey of Family Growth was conducted, but it was not statistically significan