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Living World

The silent majority: RNAs that don’t make proteins

Once considered cellular junk, non-coding RNAs are emerging as key players in everything from brain development to cancer — with much still to be discovered

Sweet! The cell’s sugary coating comes into view

Built from thickets of glucose, galactose, mannose and more, the glycome plays key roles in cell communication, immunity and the blood-brain barrier

The strange animals that control their body heat

Some creatures can dramatically alter their internal temperature — a strategy called heterothermy — and outlast storms, floods and predators

The curious case of low-protein diets

In the lab, animals live longer on less of the stuff. How could this be, and what does it mean for human aging?

The curious life of a clever slime mold

In its quest to feed, avoid nasty substances and just generally live its life, the brainless, one-celled Physarum polycephalum performs some impressive tricks of learning and memory

Why disease outbreaks on Chinese fur farms are a serious risk to public health

Farming animals for fur is not only cruel but also provides an ideal environment for viruses to mix and cross over into humans

Microbial Olympics: Super-duper one-celled athletes

They race, they leap, they spin, they shoot. Meet the organisms for whom physical prowess is more than sport — it’s a matter of life and death.

Field of clones: How horse replicas came to dominate polo

In Argentina, equine cloning in polo is no longer a rarity. It’s now a mature industry — although ethical dilemmas surrounding it persist.

Beating back the Aedes aegypti mosquito

Scientists are taking a multipronged approach to tackle this dangerous carrier of dengue, yellow fever and other noxious viruses

Top science stories of 2025

In a year of funding chaos, ongoing climate change and pollution perils, we also saw the most powerful telescope yet, personalized gene therapy, and the next-best-thing to an HIV vaccine — not to mention a brand-new color

The science of green hair care

A push to move away from petroleum products — plus the perception that natural is gentler — has scientists lathering up new ingredients, from wood and fungus extracts to engineered proteins

Journey to the egg: How sperm navigate the path to fertilization

COMIC: Male cells must survive twisty passages, strong currents and immune attacks; millions enter, but only one can finish

How plant-eaters snag their essential amino acids

Early in evolution, we animals lost the ability to manufacture nine of the 20 building blocks needed to make proteins. Herbivores evolved an impressive array of tricks to ensure their dietary needs are met.

Can tinkering with plant pores protect crops against drought?

It’s not an open-and-shut case. But researchers are finding out plenty by genetically altering the numbers of these openings, as well as simulating future atmospheres, and more.

Flying with whales: Drones are remaking marine mammal research

From collecting whale snot to capturing surprising behaviors, aerial drones are giving scientists a new view of life at sea

How a humble weed became a superstar of biology

Arabidopsis thaliana was always an unlikely candidate for the limelight. But 25 years ago, the diminutive thale cress launched the botanical world into the molecular era.

Animals that eat poisons and don’t die

Critters consuming species that contain deadly toxins have evolved a suite of clever strategies to keep out of harm’s way

Tracking down the hidden pollutants that make wildlife sick

A new technique for detecting unknown and unlooked-for chemicals is revealing dozens of contaminants in alligators, sea lions and condors

Animal origami: The physics of nature’s folds

Insects that tuck away wings; a protist with an accordion-like neck — studying these clever creases may inspire foldable structures for drones

The pernicious infections infiltrating Ukraine’s front lines

Doctors and scientists are waging a shadow war in the besieged nation: bacteria that are resistant to multiple antibiotics. The deadly bugs are now knocking on western Europe’s door.

The clock is ticking: How epigenetics could help save wildlife from collapse

In polar bears, dolphins, baboons and more, molecular signatures of aging are changing how conservationists assess population health, resilience and risk

Shucking the past: Can oysters thrive again?

Dredging and pollution devastated the once-bountiful reefs. Careful science may help bring them back.

Using pollen to make paper, sponges and more

Reengineered, the powdery stuff could become a range of eco-friendly objects

How the cavefish lost its eyes — again and again

Mexican tetras that got swept into pitch-black caverns had no use for the energetically costly organs. They lost their eyes in multiple ways — and gained some nifty traits too.

Dogs and their people: Companions in cancer research

Canine and human cancers bear many similarities — studies in dogs are helping to develop treatments for both species

Worm-inspired treatments inch toward the clinic

Infection by certain wrigglers may reduce inflammation and fight obesity and diabetes. Scientists are at work to turn the findings into therapies.

The history of the ocean, as told by tiny beautiful fossils

Bountiful remains of foraminifera reveal how organisms responded to climate disturbances of the past. They can help predict the future, too.

How farmers can help rescue water-loving birds

Cranes, sandpipers, ducks, geese and many other waterbirds have lost essential rest stops along their seasonal migration routes. Bird-friendly agriculture can assist in filling the gaps.

Viruses that roam the fungal kingdom

Mushrooms and other fungi can harbor hidden companions — and some of these may fight pesky or dangerous molds

Getting along with grizzly bears

In rural Alaskan and Canadian communities, reducing conflict between people and their wild neighbors means both species must change their behavior

Weird and wondrous sea cucumbers

These spiny or slimy ocean creatures display an astonishing diversity of appearances, behaviors and lifestyles. Many are increasingly threatened.

Rotten tricks: How hot and stinky plants woo pollinators

To attract insects, thermogenic plants turn up the heat, emit strong odors and even disguise themselves as corpses

The surprisingly tricky art of seed banking

To safeguard threatened plants, science must unravel the hidden biology of often-persnickety seeds as they age, sleep and awaken

Ghost forests are growing as sea levels rise

As trees choked by saltwater die along low-lying coasts, marshes may move in — for better or worse, scientists are learning

At the dawn of life, did metabolism come first?

Some scientists propose that in the beginning, geochemistry gave way to biochemistry — with no genetic material necessary. Only later did RNA and DNA appear.

How cancer cells travel to new tissues and take hold

Understanding these astonishing migrations through the human body, known as metastases, could suggest novel treatments

Meet the capuchin monkey: Curious, creative and vengeful

UCLA’s Susan Perry has devoted decades to studying the fast-motion life of these New World primates and learning how the young acquire the skills they need to thrive

The teeming life of dead trees

Rotting logs turn out to be vital to forest biodiversity and recycling organic matter

Return of the California condor

North America’s largest bird disappeared from the wild in the late 1980s. Reintroduction work in the United States and Mexico has brought this huge vulture back to the skies. This is the story of its comeback.

Why scientists are enlisting fungi to save endangered plants

The mycorrhizae that live among and in plant roots can boost the health of certain species, and even whole ecosystems — but scientists warn against a one-size-fits-all approach

The caterpillars that can kill you

Some species make venoms that are deadly. With more research, those toxic compounds could yield useful medicines.

We are all genetic mosaics

Picture your body: It’s a collection of cells carrying thousands of DNA errors accrued over a lifetime — many harmless, some bad, and at least a few that may be good for you.

The ones who need little sleep

Short sleepers cruise by on four to six hours a night and don’t seem to suffer ill effects. Turns out they’re genetically built to require less sleep than the rest of us.

The secrets of butterfly migration, written in pollen

Trillions of insects move around the globe each year. Scientists are working on new ways to map those long-distance journeys.

She ain’t scary, she’s my mother

Elaborate courtship, devoted parenthood, gregarious nature (and occasional cannibalism) — earwigs have a lot going for them

Frogs kick back against lethal fungus

Scientists are seeing signs of resistance to the infections that have been wiping out the world’s amphibian populations — and developing strategies to aid in the fight Down Under

Night of the zombie insects

A parasitic fungus takes over the brains of flies and controls them for its own sinister ends. Here’s the science behind the horror.

When ribosomes go rogue

Unusual variations in the cellular protein factory can skew development, help cancer spread and more. But ribosome variety may also play biological roles, scientists say.

Are you my baby? The clever ways that brood parasites trick other birds

Cuckoos, cowbirds and other species outsource their parental duties. Scientists are uncovering new twists in this sneaky — and often treacherous — game of survival.

We are family: Tracing the evolution of animals

To understand the origins of multicelled life, researchers are studying a motley assortment of simpler animal relatives. The commonalities they’re unearthing offer a trove of clues about our mutual past.

Hummingbirds thrive on an extreme lifestyle. Here’s how.

Soldiering through nightly suspended animation, a (nearly) all-sugar diet, backwards flight and long migrations, the birds’ tiny physiques prove mighty

Your cells are dying. All the time.

Some go gently into the night. Others die less prettily in freak accidents or deadly invasions, or after a showy display.

Targeting the racial disparity in kidney disease

Some people of West African descent face a higher risk of renal failure. New drugs based on gene research may help right the ship — if they can reach everyone who needs them.

What if a virus could reverse antibiotic resistance?

In promising experiments, phage therapy forces bacteria into a no-win dilemma that lowers their defenses against drugs they’d evolved to withstand

What’s that smell — and how’d you know?

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.

These proteins have been secretly managing your cells

Scientists have long known that histones spool DNA and help regulate genes. They may be doing a lot more.

The phageome: A hidden kingdom within your gut

Human innards are teeming with viruses that infect bacteria. What are they up to?

What a bioluminescent petunia had to teach me

I bought a glowing plant. It led me down a rabbit hole of radiant mushrooms, 19th century experiments and a modern rivalry between scientists in Russia and the Americas.

Air pollution makes it harder for bees to smell flowers

Contaminants can alter plant odors and warp insects’ senses, disrupting the process of pollination

Of genes, chromosomes and oratorios

Jenny Graves has spent her life mapping genes and comparing genomes. Now she’s created a musical opus about evolution of life on this planet — bringing the same drive and experimentalism she brought to the study of marsupial chromosomes.

It’s not just us: Other animals change their social habits in old age

In patterns that may sound familiar, long-term studies reveal what elderly deer, sheep and macaques are up to in their twilight years

Animals use physics? Let us count the ways

Cats twist and snakes slide, exploiting and negotiating physical laws. Scientists are figuring out how.

One fish, two fish, 3,000 fish ...

Groups of cichlid fishes in East Africa radiated into thousands of species within dazzlingly short periods of time. How did they do it?

Nature interrupted: Impact of the US-Mexico border wall on wildlife

Scientists on both sides of the border are working to understand how the barrier is affecting the area’s biodiversity. Meanwhile, communities try to save animals left without access to water.

The most common wombat is also the least understood

Australia’s iconic marsupial has been viewed as a food source, pest, mascot and, now, a conservation concern. Scientists are breaking down myths — using genetics, robots and citizen science — and finding new ways to protect the animals.

A scientific mission to save the sharks

Despite increasing protection measures, these fish are among the world’s most endangered animals. New tests to detect species being traded, as well as population studies, aim to help save them.

Cleaning up cow burps to combat global warming

New tools for lowering methane emissions from livestock are on their way

Abracadabra! How magic can help us understand animal minds

By performing tricks for birds, monkeys and other creatures, researchers hope to learn how they perceive and think about their world

A lifetime of love for the charismatic narwhal

An independent scientist working with the Inuit has unraveled many mysteries of the one-tusked ‘unicorn of the sea’

Invasive species are transforming the Everglades

From Burmese pythons and Asian swamp eels to Old World climbing ferns, South Florida hosts hordes of non-native animals and plants. What can be done about the ecological havoc they are wreaking?

To pee or not to pee? That is a question for the bladder — and the brain

How do we sense the need to urinate? The basic urge is surprisingly complex and can go awry as we age.

The hornet has landed: Scientists combat new honeybee killer in US

An invasive yellow-legged wasp has been decimating beehives in Europe — and bedeviling Georgia since last summer. Researchers are working nest by nest to limit the threat while developing better eradication methods.

Spots, stripes and more: Working out the logic of animal patterns

More than 70 years ago, mathematician Alan Turing proposed a mechanism that explained how patterns could emerge from bland uniformity. Scientists are still using his model — and adding new twists — to gain a deeper understanding of animal markings.

Fit for a dog? The latest science on CBD for pets

Though studies are still mixed, and products often inconsistent, many scientists have hope that cannabidiol can help canines and other furry patients suffering from arthritis, allergies and anxiety

The wasps that tamed viruses

To protect and rear their young, some insects have transformed wild viruses into tiny biological weapons

From toxic fungus to soy sauce superstar

Today the koji mold is a master fermenter, but it has a checkered past

The tender art of tadpole parenting

From poison frogs to worm-like caecilians, some amphibians are hardworking and surprisingly creative caregivers

They swim and they spin: Meet the aquatic spiders

Some make nests inside seashells, others tote bubbles of air on their backs. The spiders that went back to water evolved lots of slick survival strategies.

Why are there so many beetle species?

Diet played a key role in the evolution of the vast beetle family tree

How to control chronic wasting disease

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.

Inching toward a global treaty on plastic pollution

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.

Hunting sky islands for genetic clues to climate resilience

OPINION: Isolated mountaintops are hotbeds of evolutionary adaptation and great places to study how climate change affects ecosystems

Moving trees north to save the forests

As the world warms, trees in forests such as those in Minnesota will no longer be adapted to their local climates. That’s where assisted migration comes in.

Losing the connection between the Andes and the Amazon: A price of peace in Colombia

The South American country, where the biodiversity of the Andes meets that of the Amazon, is losing the great natural wealth of some 1,500 square kilometers of forest each year, mainly in areas formerly under guerrilla control

Getting rid of bed bugs: Trickier than ever

The blood-sucking insects now show up in two varieties and are resistant to many pesticides. New eradication strategies include fungal spores and nasty human odors.

Indigenous languages are founts of environmental knowledge

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

Forests are under attack from invasive species

OPINION: International commerce and travel bring ecological destruction to the world’s most cherished natural places. We need to do more to stop the assault.

CRISPR gene editing: Moving closer to home

With the first medical therapy approved and systems like CRISPR-Cas showing up in complex cells, there’s a lot going on in the genome editing field. Here’s our primer.

How shade coffee lends conservation a hand

When managed in the right way, the farms that provide our morning brew can be a refuge for plant and animal biodiversity

Genes and heart disease: Finally making the link

Polygenic risk scores — a patient’s chance, based on tiny DNA variants, of developing cardiovascular disease, breast cancer and more — are coming to clinics. But there are kinks to iron out and accuracy remains an issue.

How gut bacteria connect to Parkinson’s disease

Growing evidence suggests a link between the debilitating neurological illness and the microbes that live in our intestines. The vagus nerve may be a pathway.

The growing link between microbes, mood and mental health

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.

Top science stories of 2023

Twelve standout news events and trends in a tumultuous year

Why scientists are making transparent wood

Stronger than plastic and tougher than glass, the resin-filled material is being exploited for smartphone screens, insulated windows and more

New Zealand’s quest to save its rotund, flightless parrots

DNA sequencing, GPS tracking and tailored diets are slowly restoring the endangered kākāpō

Neanderthals: More knowable now than ever

They have held our fascination ever since we first identified their remains. Today, thanks to new artifacts and technologies, findings about our closest relatives are coming thick and fast.

In the Great Pacific Garbage Patch, new marine ecosystems are flourishing

Sea life, stuck to plastic bottles and other human trash, has journeyed far from coastal habitats — and may threaten local species

Untangling the genetics that underlie our facial features

After turning up hundreds of genes with hard-to-predict effects, some scientists are now probing the grander developmental processes that shape face geometry

As the climate changes, plants must shift their ranges. But can they?

Lots of them depend on fruit-eating birds and mammals to spread their seeds. But it’s debatable whether the animals — many in trouble themselves — can disperse seeds far and fast enough to keep pace with a warming world.

Everyone should start counting spiders

Our collective arachnid aversion could be causing us to overlook something even scarier: Spiders may be disappearing.

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