Feature
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Evolutionary Upstarts
Theories of the evolution of the human mind are evolving, with some researchers now presenting alternatives to the dominant notion that genetic competition for survival during the Stone Age yielded brains stocked with a bevy of instincts for specific types of thinking.
By Bruce Bower -
PlantsThe Wood Detective
Alex Wiedenhoeft belongs to the elite profession of wood identifier, the person to call when a crime investigator, museum curator, archaeologist, or patent attorney with an unusual client really needs to know what that splinter really is.
By Susan Milius -
ChemistryMolecules Leave Their Mark
A material etched with tiny, carefully shaped pores can act like an artificial enzyme, cell membrane, or receptor.
By Corinna Wu -
Health & MedicineChocolate Hearts
Preliminary studies indicate that moderate consumption of chocolate products may offer cardiovascular benefits.
By Janet Raloff -
ChemistryWhere the Gems Are
By using a novel tool to figure out an emerald’s oxygen-isotope ratio, gemologists can now determine which mine the precious stone came from and, possibly, gain insights into the formation and history of these coveted gems.
By Corinna Wu -
Health & MedicineIs Snoring a DiZZZease?
Snoring may trigger high blood pressure, which can lead to heart disease or stroke.
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AnimalsPregnant—and Still Macho
Some of the basic theories of sexual behavior and sexual selection are getting attention thanks to a burst of new studies in the topsy-turvy social world of the seahorse, where the males get pregnant.
By Susan Milius -
Save Our Sounds
Some 14 libraries around the world have built up substantial collections of natural sounds, from bird songs to fish hums.
By Susan Milius -
Health & MedicineTargeted Therapies
Tailoring prescriptions based on a person's genes may help reduce side effects and allow the development of more personalized medicine.
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AstronomyGetting a Clear View
Outfitted with a mirror that flexes several hundred times a second to compensate for the blurring induced by Earth’s atmosphere, one of the world’s sharpest telescopes just got a whole lot sharper.
By Ron Cowen -
MathGreat Computations
From sifting through radio telescope signals for signs of extraterrestrial life to searching for record-breaking prime numbers, home and office computers contribute via the Internet to a variety of research efforts.
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TechPocket Sockets
Keenly aware of user frustration with the short-lived batteries in cell phones and other portable electronics, researchers are rushing to work out the bugs in tiny fuel-cell power plants that will be as small as batteries—but last a lot longer and be refuelable.
By Peter Weiss