Beer Fermentation Hops Along
The bittering agents called hops have enzymes that chew up starch and unleash more fermentable sugar—which can boost alcohol and CO2 in the finished brew. Christopher Intagliata reports...
Stories by Christopher Intagliata
Scanning Ancient Civilizations from the Skies
An aerial laser scan of more than 800 square miles of Guatemalan jungle revealed Maya buildings, canals, roads and bridges. Christopher Intagliata reports.
Antifreeze Surface Fights Ice with Ice
Patterning a surface with tiny stripes of ice prevents frost formation on the rest of the surface—a technique that could keep planes or roads frost-free. Christopher Intagliata reports...
Scale Can Measure Medicine—and Play a Scale, Too
Researchers have designed a musical instrument that can detect counterfeit drugs by the pitch of its notes. Christopher Intagliata reports.
Diverse Tree Portfolio Weathers Droughts Better
Forests with numerous tree species, and therefore a mix of water-management strategies, appear more tolerant of drought. Christopher Intagliata reports.
Sea Otters' Powerful Paw Prey Perception
The marine mammals have extraordinarily sensitive touch—which helps them nab prey in the absence of other sensory cues. Christopher Intagliata reports.
Genetic Tweak Gave Early Humans a Leg Up
A mutation in a key gene may have endowed humans with superior endurance—allowing them to compete better with other animals on the savanna. Christopher Intagliata reports.
Earlier Springs May Mean Mistimed Bird Migrations
Springtime's arriving earlier across North America. But the degree of change isn't the same everywhere, which could spell trouble for migratory birds. Christopher Intagliata reports. ...
When Neutron Stars Collide
Astrophysicists have gotten a better glimpse at what happens to crashing neutron stars by listening in on the electromagnetic echoes of the collision. Christopher Intagliata reports. ...
Bonnethead Sharks Are Underwater Lawn Mowers
The hammerhead relatives consume copious amounts of sea grass, and have the digestive machinery to process it—making them true omnivores. Christopher Intagliata reports.
Robot Bartender Will Take Your Order
Digital assistants have to respond quickly, but correctly—so researchers are studying how real humans navigate that trade-off, to design better machines. Christopher Intagliata reports...
Ancient Americans Bred Symbolically Important Scarlet Macaws
Genetic information from the bones of macaws found in abandoned pueblos suggests they were bred and distributed as a commodity. Christopher Intagliata reports.
For Some Crows, Migration Is Optional
Crows are what's known as "partial migrants"—as cold weather approaches, some crows fly south whereas others stay put. And that behavior appears to be ingrained. Christopher Intagliata reports. ...
Better Data Could Mean Better Dating
Both men and women tended to pursue mates just 25 percent more desirable than themselves — suggesting they are "optimistic realists." Christopher Intagliata reports...
Corn Variety Grabs Fertilizer from the Air
A variety of corn from Oaxaca, Mexico, has aerial roots that harbor nitrogen-fixing bacteria, allowing the corn to suck nitrogen straight from the air. Christopher Intagliata reports. ...
Birds Learn Safety from Other Kinds of Birds
Birds become good at avoiding danger by eavesdropping on the alarm calls of other birds—and the learning occurs without even seeing their peers or predators. Christopher Intagliata reports. ...
Microbes Share Your Morning Metro Commute
An analysis of the Hong Kong metro found microbes, including some with antibiotic resistance genes, freshly disperse throughout the system each day. Christopher Intagliata reports. ...
Mouth Sets Healing Standard
Certain proteins that coordinate the healing response are present at higher levels in oral tissue—meaning wounds in the mouth fix faster. Christopher Intagliata reports.
Border Wall Could Disrupt Hundreds of Species
More than 2,500 scientists signed a letter saying that an expanded U.S.–Mexico border wall would threaten both biodiversity and scientific research. Christopher Intagliata reports...
Ancient Tooth Tartar Traps Clues to Iron Age Diet
By analyzing the proteins in ancient dental plaque, archaeologists determined that British menus almost three millennia ago featured milk, oats and peas. Christopher Intagliata reports.
