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HumansTwo-fifths of Amazonian forest is at risk
The Amazon basin's forest may lose 2.1 million square kilometers by 2050 if current development trends go unabated.
By Ben Harder -
AnthropologyChimps scratch out grooming requests
Pairs of adult males in a community of wild African chimps often communicate with gestures.
By Bruce Bower -
AnimalsSharpshooter threatens Tahiti by inedibility
A North American insect is menacing Tahitian ecosystems by getting itself killed and proving surprisingly toxic to its predators.
By Susan Milius -
Health & MedicineParasite can’t survive without its tail
The protozoan that causes African sleeping sickness can't survive in the mammalian bloodstream without its long, whiplike tail.
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PhysicsRevealing Covert Actions
The recent merger of high-speed video technology and centuries-old techniques for seeing ordinarily invisible fluctuations of the air is enabling engineers to visualize and study the previously unseen, large-scale behavior of shock waves in explosions and aerodynamics research.
By Peter Weiss -
Materials ScienceSpin City
Researchers are using a technique called electrospinning to create fibrous mats that have potential applications in drug delivery, wound care, and tissue engineering.
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MathThe Mandelbrot Monk
In the 13th century, Udo of Aachen wasn’t merely a minor poet, copyist, and theological essayist. A new study of his work reveals that this medieval Benedictine monk was an outstandingly original and talented mathematician. He not only devised the rules for complex arithmetic but also pioneered the iterative process for displaying the famous fractal […]
By Science News -
HumansFrom the March 28, 1936, issue
A flooded Washington, D.C., a giant stellar explosion, and three new nebulae.
By Science News -
Planetary SciencePropelling Evidence: Cassini finds clues to source of Saturn’s rings
Four propeller-shaped gaps in one of Saturn's main rings are the latest evidence that a shattered moon produced the planet's dazzling hoops.
By Ron Cowen -
EarthCoral Clues: Rise and fall of reefs record quakes’ effects
Shallow coral reefs around islands west of Sumatra chronicled the uplift and subsidence that resulted from the massive quakes that struck that region in 2004 and 2005.
By Sid Perkins -
Awake and Learning: Memory storage begins before bedtime
Although a good night's sleep aids memory storage, learning isn't a task that just happens overnight.
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TechCool Wire: Nanostructure boosts superconductor
The extraordinary performance of a prototype superconductive wire is encouraging superconductivity specialists, even though the prototype is unlikely to be mass-produced.
By Peter Weiss