October 11, 2019
Algorithms are already used to remove online hate speech. Now scientists have taught AI to respond—which they hope might spark more discourse. Christopher Intagliata reports.
October 9, 2019
The 2019 Nobel Prize in Chemistry goes to John Goodenough, M. Stanley Whittingham and Akira Yoshino “for the development of lithium-ion batteries.”
October 8, 2019
The 2019 Nobel Prize in Physics goes to James Peebles "for theoretical discoveries in physical cosmology" and to Michel Mayor and Didier Queloz "for the discovery of an exoplanet orbiting a solar-type star."
October 7, 2019
The 2019 Nobel Prize in Physiology or Medicine goes to William G. Kaelin Jr, Sir Peter J. Ratcliffe and Gregg L. Semenza “for their discoveries of how cells sense and adapt to oxygen availability.” They identified molecular machinery that regulates gene activity in response to changing levels of oxygen.
October 7, 2019
DNA from the teeth of medieval plague victims indicate that the pathogen likely first arrived in eastern Europe before spreading across the continent.
October 5, 2019
Scientists found eight species of nematodes living in California's harsh Mono Lake—quintupling the number of animals known to live there. Christopher Intagliata reports.
October 2, 2019
Tiny insects called treehoppers produce very different mating songs at higher versus lower temperatures, but the intended recipient still finds the changed songs attractive.
October 2, 2019
Adult corals can reshuffle their symbiotic algae species to adapt to warming waters—and, it appears they can pass those adaptations on. Christopher Intagliata reports.
October 1, 2019
The brains of blind people repurpose the vision regions for adaptive hearing, and they appear to do so in a consistent way.
September 29, 2019
A few brief reports about international science and technology from Hungary to Japan, including one about a wine grape in France that DNA testing shows has been cultivated for almost a millennium.
September 25, 2019
Western ears consider a pitch at double the frequency of a lower pitch to be the same note, an octave higher. The Tsimane’, an indigenous people in the Bolivian Amazon basin, do not.
September 25, 2019
BBC and Netflix nature documentaries consistently shy away from showing viewers the true extent to which we've damaged the planet. Christopher Intagliata reports.
September 19, 2019
A slight temperature difference at night between a surface losing heat and the surrounding air can be harnessed to generate electricity to power lights.
September 18, 2019
Homo erectus used hand axes to butcher elephants and other game. But a new study suggests they also used finer, more sophisticated blades. Christopher Intagliata reports.
September 17, 2019
Microplastic particles are everywhere, but in freshwater systems, 60 percent of particles are clothing lint from laundry.
September 16, 2019
A study finds no deleterious effects on mental health when kids spend their leisure time texting and engaging in other online activities.
September 13, 2019
As the little structures grow, their constituents specialize into different types of brain cells, begin to form connections and emit brain waves. They could be useful models for development and neurological conditions.
September 13, 2019
Squirrels constantly scan their surroundings for hawks, owls and other predators. But they also surveil for threats by eavesdropping on bird chatter. Christopher Intagliata reports.
September 12, 2019
Lava flow records and sedimentary and Antarctic ice core data show evidence of planetary magnetic field activity 20,000 years before the beginning of the last pole reversal.
September 11, 2019
At the Kermadec Islands, humpbacks from all over the South Pacific converge and swap songs. Christopher Intagliata reports.
September 9, 2019
Better food labeling could prevent people from throwing away a lot of "expired" food that's still perfectly edible.
September 5, 2019
The conditions of sunlight, temperature, humidity and wind that make cropland good for agriculture also maximize solar panel efficiency.
September 5, 2019
It’s not easy to recycle polyurethane, so it’s usually tossed out or burned. But a chemical tweak can turn polyurethane into glue. Christine Herman reports.
September 3, 2019
Wild animals that live near humans have higher cholesterol than their rural counterparts - and our food could be to blame. Christopher Intagliata reports.
August 30, 2019
As Hurricane Dorian approaches Florida, consider that feeding style means that aggressive tangle-web spider colonies produce more offspring after severe weather, while docile colonies do better in calm conditions.
August 28, 2019
A small patch of graphene on human skin seemed to block the mosquitoes' ability to sense certain molecules that trigger a bite. Christopher Intagliata reports.
August 26, 2019
Microbes fly tens of miles over Chile’s dry, UV-blasted Atacama Desert—and scientists say the same could happen on Mars. Christopher Intagliata reports.
August 22, 2019
A program at the University of Illinois trains indigenous scientists in genomics—in hopes that future work will be aimed at benefiting those communities. Christine Herman reports.
August 20, 2019
U.S. Military Academy cadets wear the colors black, gray and gold for reasons found in gunpowder's chemistry.
August 14, 2019
Scientists found an interstellar iron isotope in Antarctic snow samples—which hints that our region of the universe may be the remnant of an ancient exploding star. Christopher Intagliata reports.
August 13, 2019
Some people go on dates just to score a free meal—a phenomenon known as a “foodie call.” But it takes a certain personality type. Karen Hopkin reports.
August 12, 2019
Researchers trained machine-learning algorithms to read Amazon reviews for hints that a food product would be recalled by the FDA. Christopher Intagliata reports.
August 9, 2019
Slight changes around the eyes are indeed a giveaway as to whether a smile is sincere or faked.
August 8, 2019
Researchers slowed the approach of greedy gulls by an average of 21 seconds by staring at the birds versus looking elsewhere. Christopher Intagliata reports.
August 8, 2019
Honest, involuntary laughter cued people to laugh more at some really bad jokes than they did when hearing forced laughter.
August 6, 2019
By killing off many of New Zealand’s endemic birds, humans destroyed 50 million years’ worth of evolutionary history. Christopher Intagliata reports.
August 3, 2019
Nearly half of bacteria gathered in public settings around the city were resistant to two or more commonly used antibiotics, such as penicillin and erythromycin. Christopher Intagliata reports.
August 2, 2019
Mating is risky business for black widow males—so they hitchhike on the silk threads left by competitors to more quickly find a mate. Christopher Intagliata reports.
July 31, 2019
Babies as young as a year and a half want leaders to fix situations in which they see someone else being treated unfairly.
July 31, 2019
Released or escaped parrots are now living in most states and are breeding in at least 21. For some, it’s a second chance at survival.
July 30, 2019
A few brief reports about international science and technology from Guatemala to Australia, including one about the first recorded tornado in Nepal.
July 25, 2019
Photographs snapped by safari tourists are a surprisingly accurate way to assess populations of African carnivores. Christopher Intagliata reports.
July 24, 2019
Computer modeling revealed that insects with a celestial compass can likely determine direction down to just a couple degrees of error. Christopher Intagliata reports.
July 20, 2019
Engineer John Houbolt pushed for a smaller ship to land on the lunar surface while the command module stayed in orbit around the moon.
July 20, 2019
Just before Neil Armstrong climbed back into the lunar module, he scooped up a few last-minute soil samples--which upturned our understanding of planetary formation. Christopher Intagliata reports.
July 19, 2019
Researchers dissected the jaws of ants infected with the Ophiocordyceps  fungus to determine how the fungus hijacks the ants' behavior. Christopher Intagliata reports. 
July 16, 2019
Youths rated as attractive were less likely to have negative encounters with the criminal justice system—but only if they were women. Christopher Intagliata reports.
July 15, 2019
A proof-of-concept study got transgenic tobacco plants to make a useful enzyme in their chloroplasts, not nuclei, minimizing chances for transfer to other organisms.
July 12, 2019
Starting in 2017, an artificial intelligence monitoring system at the Welgevonden Game Reserve in South Africa has been helping to protect rhinos and their caretakers.
July 11, 2019
The pack produces a steady trickle of electricity from the swinging motion of your stuff. Christopher Intagliata reports.
July 9, 2019
An analysis of the 2019 edition of the Major League baseball points to reasons why it's leaving ballparks at a record rate.
July 4, 2019
A lab analysis found that even an all-beef frankfurter had very little skeletal muscle, or "meat." So what’s in there? Christopher Intagliata reports. 
July 2, 2019
People who spent at least two hours outside—either all at once or totaled over several shorter visits—were more likely to report good health and psychological well-being. Jason G. Goldman reports.
June 30, 2019
Geneticist Natalie Telis noticed few women asking questions at scientific conferences. So she publicized the problem and set about to make a change. Christopher Intagliata reports.
June 27, 2019
Males that allow females to take food right out of their mouths are more likely to sire offspring with their dining companions.
June 27, 2019
By switching fruit flies' sensory neurons on and off with light, scientists were able to create the sensation of sweet or bitter tastes. Christopher Intagliata reports.
June 26, 2019
Wheat plants' leaves repel water, which creates the perfect conditions for dew droplets to catapult off the leaves—taking pathogenic spores for the ride. Christopher Intagliata reports.
June 25, 2019
Mice that were fed bacteria isolated from elite athletes logged more treadmill time than other mice that got bacteria found in yogurt.
June 24, 2019
A few brief reports about international science and technology from Canada to Kenya, including one about how humans thousands of years ago in what is now Argentina butchered and presumably ate giant ground sloths.
June 22, 2019
Rather than wiping microbes out, antiperspirants and foot powders increased the diversity of microbial flora in armpits and between toes. Christopher Intagliata reports.
June 18, 2019
Two monkey species who last shared a common ancestor 3 million years ago have "eerily similar" alarm calls.
June 16, 2019
Millipedes, often blind, have come up with clever physical signals to ward off sexual advances from members of wrong species.
June 13, 2019
People appear to consume between 74,000 and 121,000 microplastic particles annually, and that's probably a gross underestimate.
June 13, 2019
At the third Scientific American “Science on the Hill” event, “Solving the Plastic Waste Problem”, one of the issues discussed by experts on Capitol Hill was biodegradability.  
June 6, 2019
Researchers trained a neural network to scrutinize high school essays and sniff out ghostwritten papers. Christopher Intagliata reports.
June 5, 2019
Anthropologists found parasite eggs in ancient poop samples, providing a glimpse of human health as hunter-gatherers transitioned to settlements. Christopher Intagliata reports.
June 4, 2019
Murray Gell-Mann, 1969 Nobel Laureate in Physics who identified the quark, died May 24th.
May 30, 2019
Some wild female bonobos introduce their sons to desirable females—then make sure their relations won’t be interrupted by competing males. Karen Hopkin reports.
May 29, 2019
Preterm babies who listened to music in the neonatal intensive care unit had brain activity that more closely resembled that of full-term babies. Christopher Intagliata reports.
May 24, 2019
A new study suggests women's performance on math and verbal tasks increases as room temperature rises, up to about the mid 70s F. Christopher Intagliata reports.
May 22, 2019
A study found that only a small percentage of bird beak shape variation is dependent on diet, with other factors like display and nest construction probably playing parts too.
May 21, 2019
Chewing gums discovered in western Sweden contain the oldest human DNA found in Scandinavia. Christopher Intagliata reports.
May 17, 2019
Frances Arnold, the Caltech scientist who shared the 2018 Nobel Prize in Chemistry, says evolution can show us how to solve problems of sustainability.
May 16, 2019
Growing up in a home filled with books enhances enhances intellectual capacity in later life, even if you don't read them all.
May 15, 2019
A study finds that kids, especially daughters, are effective at teaching their parents about climate issues.
May 15, 2019
Ammonia from penguin poop gets carried on Antarctic winds, fertilizing mosses and lichens as far as a mile away. Christopher Intagliata reports.
May 13, 2019
The residue of ancient urine can reveal the presence of early stationary herder-farmer communities.
May 9, 2019
By dampening the energy of waves, coral reefs protect coastal cities from flooding damage and other economic losses. Christopher Intagliata reports.
May 6, 2019
Researchers want to outfit air conditioners with carbon-capture technology. Christopher Intagliata reports.
May 3, 2019
In his memoirs, the womanizing writer Giacomo Casanova described suffering several bouts of gonorrhea—but researchers found no trace of the microbe on his handwritten journals. Karen Hopkin reports.
May 2, 2019
Algorithms learned to sift ultrasonic rat squeaks from other noise, which could help researchers who study rodents’ emotional states. Lucy Huang reports.
May 1, 2019
Scientists propose that the moon could have formed when a Mars-sized object slammed into an Earth covered in magma seas. Christopher Intagliata reports.
April 30, 2019
Felines move their ears, heads and tails more when they hear their names compared to when they hear similar words. Jim Daley reports.
April 27, 2019
A few brief reports about international science and technology from Liberia to Hawaii, including one on the discovery in Northern Ireland of soil bacteria that stop the growth of MRSA and other superbugs.
April 26, 2019
The likelihood of an event like Hurricane Maria in Puerto Rico, and of its massive precipitation, is fivefold higher in the climate of today than it would have been some 60 years ago
April 26, 2019
Snake venom toxicity depends on snake size, energy requirements and environmental dimensionality more than on prey size.
April 25, 2019
Freshwater dolphins are evolutionary relics, and their calls give clues to the origins of cetacean communication in general. Christopher Intagliata reports.
April 24, 2019
The tiny brain of a honeybee is apparently able to calculate small numbers' addition and subtraction. Annie Sneed reports.
April 20, 2019
A deeper data dive calls into question a 2018 study that found a spike in fatal traffic accidents apparently related to marijuana consumption on this date.
April 20, 2019
Female hyenas keep their clans in line by virtue of their complex social networks. Jason G. Goldman reports.
April 19, 2019
One in three gluten-free dishes tested at restaurants contained gluten—especially GF pizzas and pastas. Christopher Intagliata reports.
April 18, 2019
At an April 9th event sponsored by the Kavli Foundation and produced by Scientific American that honored Nobel and Kavli Prize winners, neuroscientists James Hudspeth and Robert Fettiplace talked about the physiology of hearing and the possibility of restoring hearing loss.
April 16, 2019
At an April 9th event sponsored by the Kavli Foundation and produced by Scientific American that honored Nobel and Kavli Prize winners, economist Paul Romer talked about how the social system of science offers hope for humanity and for how we can live with each other.
April 13, 2019
At extreme pressures, potassium atoms can be both liquid and solid at the same time, a phase of matter known as "chain melt." Christopher Intagliata reports. 
April 12, 2019
Coyotes become fearless around people in just a few generations—which isn’t good for their longterm co-existence with humans in cities. Jason G. Goldman reports.
April 11, 2019
NYU’s “Sounds of New York City” project listens to the city—and then, with the help of citizen scientists, teaches machines to decode the soundscape. Jim Daley reports.
April 9, 2019
Hydrogen peroxide in whitening treatments penetrates enamel and dentin, and alters tooth proteins. Christopher Intagliata reports.
April 8, 2019
Light tuned to a specific frequency warms ice more than water—which could come in handy for defrosting delicate biological samples. Adam Levy reports.
April 5, 2019
The monkeys lower the pitch of their "whinnies" when they're far from the rest of their group, which might help the calls travel further through jungle foliage. Christopher Intagliata reports.
April 3, 2019
Food chemists precisely measured how charcoal filtration contributes to Tennessee whiskey's smoother flavor. Christopher Intagliata reports.
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