Kids from immigrant backgrounds in the US often struggle to develop fluency in two languages. Many factors — parental misconceptions, the lack of support in schools and social attitudes — play a role.
It’s clear that genes, receptors and neurons all play a role in detecting odors. But much of how we make sense of what we sniff remains mysterious. A neuroscientist explains.
Regulatory hurdles, industry objections and legal fights have gone on for decades over traditional tobacco. What’s in store for the next generation of smoking?
A prion sickness similar to mad cow is spreading rapidly through North America’s deer and elk populations. A veterinary microbiologist discusses the options for keeping it in check.
Delegates from 175 nations are working on an international agreement that would tackle the vast amounts of plastic waste in the environment. A marine scientist specializing in plastic pollution discusses the problem and her hopes for the proceedings.
The push to legalize magic mushrooms, MDMA, LSD and other hallucinogens is likely to heighten tensions between state and federal law, drug law expert Robert Mikos says
Peoples who live close to nature have a rich lore of plants, animals and landscapes embedded in their mother tongues — which may hold vital clues to protecting biodiversity
New research suggests that to maintain a healthy brain, we should tend our gut microbiome. The best way to do that right now is not through pills and supplements, but better food.
Along 1,100 kilometers, from Mexico to Costa Rica, lies the Central American volcanic arc, where the variety of magma types make for a geological paradise
As glacial cliffs break off and destabilize frozen landscapes, glaciologist Richard Alley focuses on the fractures. The work could improve predictions about future sea-level rise.
A scientist whose work was key to identifying, studying and finding treatments for this life-threatening virus discusses the scientific journey and challenges that persist
Evidence that the approach helps to save trees, preserve ecosystems and reduce carbon emissions is often hard to come by. But it can succeed if it’s done right, says an economist.
Measurements of the acceleration of the universe don’t agree, stumping physicists working to understand the cosmic past and future. A new proposal seeks to better align these estimates — and is likely testable.
These stealthy survival tactics could teach us how to curb the widespread use of chemical pesticides in agriculture. But first, researchers must learn how seemingly helpless flora deploy this masterful strategy.
The wet landmasses, though inherently impermanent, have been essential to both people and wildlife for thousands of years. But recent shifts have brought on some rapid losses that worry scientists.
The pandemic put the technology, long in development, to the test. Here’s a look at the status of its application to cancer and when it might reach patients.
Our bodies crave more food if we haven’t had enough protein, and this can lead to a vicious cycle — especially if we’re reaching for ultraprocessed instead of high-fiber whole foods
Adolescents’ brains are highly capable, if inconsistent, during this critical age of exploration and development. They are also acutely tuned into rewards.
In Latin America, tens of millions of people live in territories that are governed by outlaws — from powerful drug cartels to crime syndicates. What can be done to restore legitimate law and order?
The scientist who found a way to tally up global catches is an ocean advocate and a vocal critic of industrial fisheries. Now we have a treaty for the high seas — but does it go far enough?
There are two types of wildfire in the state, and they’re on the rise for different reasons. Each needs a distinct management approach, a researcher says.
Paleogenomic research has expanded rapidly over the past two decades, igniting heated debate about handling remains. Who gives consent for study participants long gone — and who should speak for them today?
The technology could transform how growers protect their harvests, by detecting plant diseases very early on. But the challenge is to develop tools that are as affordable as they are effective.
The way we see and describe hues varies widely for many reasons: from our individual eye structure, to how our brain processes images, to what language we speak, or even if we live near a body of water
There is no one prehistoric meal plan. A modern hunter-gatherer group known as the Hadza has taught researchers surprising things about the highly variable menu consumed by humans past.
Katherine Flegal was a scientist who found herself crunching numbers for the government, until one day her analyses set off a firestorm. What does she make of her decades as a woman in public health research?
In the US, people charged with a crime usually need to post a large cash bond to be released before trial — a system used barely anywhere else in the world. This doesn’t enhance public safety and causes great hardship to defendants and families. There’s a better way, researchers say.
This challenging phase of life may get a bad rap, but it’s also full of opportunity. A developmental neuroscientist shares what she’s learned from studies on young people’s risk-taking behavior, reasoning and more.
What would it take to create a truly intelligent microbot, one that can operate independently? A roboticist describes the fascinating minutiae and the medical jobs these tiny machines could do for us.
Urban activities — think construction, transportation, heating, cooling and more — are major sources of greenhouse-gas emissions. Today, a growing number of cities are striving to slash their emission to net zero — here’s what they need to do.
The world’s natural history collections hold billions of biological specimens, many of which still contain DNA. Scientists exploring these genetic repositories are gaining new, historical perspectives on how animals evolve.
Lower-income countries haven’t gotten an equal share of lifesaving coronavirus vaccines. Older, more familiar vaccine technologies may hold the key to more equitable use, says Maria Elena Bottazzi.
ACs and refrigerators help keep people safe — but they also further warm the planet. Scientists are working on eco-friendlier solutions as global demand for cooling grows.
Worry over the planet’s future is taking a toll on emotional well-being, researchers say. Here’s how to cope so we don’t lose hope for our planet and for ourselves.
Eliminating this food-poisoning bacterium from poultry is tricky — not least because rapid, precise tests are still unavailable. Researchers are looking at vaccines, probiotics, prebiotics and even essential oils as ways to reduce contamination on the farm.
Viruses and bacteria travel in fluids, such as the air we breathe. Studying exhalations, toilet flushes and rain drops, with math and modeling, can sharpen the big-picture view of how to prevent infections.
The meaning of the cryptic text has eluded scholars for centuries. Their latest efforts include computational analyses seeking new insights into the medieval enigma.
Records tell the story of the decline of the patriarchy, the rise and fall of marrying young, and pandemic fallout; digitizing the data could reveal even richer tales
Some lizard species do without males altogether. Scientists are studying these all-female species to see what they might reveal about the pros and cons of sex.
What will become of children growing up during the pandemic? There’s reason for concern, but the research on resilience is reassuring. A developmental psychologist explains what adults can do to protect youngsters from long-term harm.
Our national and social identity is deeply rooted in values like freedom, equality and order. A political scientist explores how these ideas affected the US response to the pandemic.
Covid-19 has exposed the weak spots of the US public health system — and that presents an opportunity, says an epidemiologist, for the nation to recognize the problems and act to fix them
Closed borders, trade conflicts and supply-chain problems raise the specter of nations turning inward and disconnecting from one another. But Princeton’s Harold James thinks Covid-19 may well push us all closer.
Historically, the road to reform has often begun with protesters taking to the streets. A sociologist and a political scientist take stock of whether today’s activism will lead to actual change.
Funerals, burials and other ways of communally commemorating those who have died have always been part of human history. The need for social distancing has upended these psychologically important rituals and fostered creative alternatives.
Amid political debate over benefits during the pandemic, a researcher explains why unemployment insurance and other government measures are crucial for the economy and employees to survive troubled times
Genes, microbes and other factors govern how each person’s body processes nutrients. Understanding the connections could help optimize diets — and health.
Airborne autonomous vehicles could soon be dropping off your Amazon packages, delivering your food and even ensuring that the infrastructure around you is safe and sound
Psychotropic drugs have severely narrowed how we treat psychiatric disorders — to the detriment of patients and society as a whole. A look at the past suggests a better way forward.
Public health messages should be loud and clear, so that everyone listens and stays safe. But that’s easier said than done — especially with a case as complex as Covid-19.
The legal system makes it easy for big businesses that break the law to escape prosecution and evade reform. There is a better way — and a legal scholar tells us exactly how it could work.
Drug treatments and vaccines for Covid-19 are needed fast. But developing them in mid-outbreak is logistically hard and ethically tricky. A veteran vaccine researcher explains.
It began with an email from Wuhan, a Maine laboratory and mouse sperm from Iowa. Now that lab is on the verge of supplying a much-needed animal for SARS-CoV-2 research.
Where other species succumbed, the killifish survived contaminated habitats. It’s a finding that could help researchers understand environmental risk factors for humans.
We know pathogens from other species can endanger us. Scientists are better equipped than ever to do something about it, but political buy-in is crucial.
New treatments for chronic pain face a long road despite promising developments. Research in people with rare diseases is pointing the way to genes that influence how we experience pain — and might lead to new medications.
It’s a hot topic under political debate: providing cash grants as a social safety net. Small programs hint at how it might work — or not — on a national scale.
More people are choosing what to eat based on where it was grown, made or created. An anthropologist looks at the myriad ways we link food to place — and whether it really could make a difference.
Robot researcher Mark Yim offers a look inside the promising field of modular reconfigurable robotics — bots that can shift form to tackle an array of tasks
War, disasters, trafficking and immigration are tearing millions of children from their parents all around the world. A psychologist explores how to help them recover.
What helps some people diagnosed with cancer, heart disease or diabetes stay relatively happy and healthy, while others are devastated? Psychologist Vicki Helgeson explains the traits and mindsets that can make the difference.
