In the March 22 SN: Native Americans’ genetic legacy, a new class of convex polyhedra, the unpredictable role of clouds in global warming and a look at how drug users escape addiction’s grip.
March 22, 2014
Tang Yau Hoong (cover); S. L. Anzick
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Magazine
In the Aug. 19 SN: Bulletins from the tick wars, roots of Rwandan genocide, spin-resistant spiders, making mums blue, tardigrade saga continues, HIV antibodies from cows, Maxwell’s demon aces memory test and more.
- Feature
Cloudy forecast
Over decades climatologists have grown more confident in their projections of the future impact of greenhouse gas emissions. But whether shifts in cloudiness will amplify global warming continues to vex researchers. - Feature
The addiction paradox
Addiction is often seen as a chronic disease that requires maintenance treatment even after years of sobriety. But even without help, most addicts eventually can quit for good. - News in Brief
While exploding, supernovas not spherical
X-rays reveal uneven allotment of element made by blowup. - It's Alive
Pelican spiders: slow, safe assassins
Spiders, thank goodness, haven’t evolved assassin drones. But the specialized hunters of the family Archaeidae can kill at a distance. - News
Goldberg variations: New shapes for molecular cages
Scientists have figured a way to iron out the wrinkles in a large class of molecular cages. - News in Brief
Nearly 1-million-year-old European footprints found
Erosion temporarily unveils remnants of a Stone Age stroll along England’s coast. - News
In crazy vs. fire, the ant with the detox dance wins
Tawny crazy ants pick fights with fire ants and win, thanks to a previously unknown way of detoxifying fire ant venom. - Science Visualized
Second wave of bird flu ups pandemic worries
The H7N9 avian influenza virus, which first appeared in 2013, is sweeping China with a second, larger wave of illness. - News
Like people, dogs have brain areas that respond to voices
MRI study may help explain how pups understand human communication. - News
Magma spends most of its existence as sludgy mush
Volcanic magma may spend most of its time in a chunky state resembling cold porridge, a new study finds.