Skip to content
cookies to track usage and preferences." data-cookieaccepttext="I UNDERSTAND" data-cookiedeclinetext="Disable Cookies" data-cookiepolicytext="Privacy Policy">
1932

Living World

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.

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.

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.

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.

Where the heck did all those structures inside complex cells come from?

Scientists agree that eons ago, a bacterium took up residence inside another cell and became its powerhouse, the mitochondrion. But there are competing theories about the birth of other organelles such as the nucleus and endoplasmic reticulum.

Division of labor in ants, wasps, bees — and us

Social insects and humans share the trait of divvying up tasks, as do some fish. Researchers find that it emerges naturally, and it often doesn’t take a boss to keep things in order.

Animal CSI: Forensics comes for the wildlife trade

Scientists are using the latest in DNA fingerprinting to combat the multibillion-dollar business of trafficking plants and animals

Evolution of the nervous system

COMIC: When, why and how did neurons first evolve? Scientists are piecing together the ancient story.

Do spiders dream? What about cuttlefish? Bearded dragons?

Researchers are finding signs of multiple phases of sleep all over the animal kingdom. The ‘active’ sleep phases look very much like REM.

To help birds and insects, cultivate native gardens

Entomologist Doug Tallamy explains how filling our yards with local plants can provide our feathered friends with a caterpillar buffet

The living things that feast on plastic

Scientists are scouring garbage sites around the world for bacteria, fungi and even insects that harbor enzymes that could be harnessed for breaking down various polymers. It’s early days, but if the efforts can be efficiently scaled-up, such biological recycling could put a dent in the plastic waste problem.

The underappreciated benefits of wild bees

Native pollinators are key to both ecology and agriculture, but have yet to get their due

Dead trees around the world are shocking scientists

Forests once deemed resilient are suffering surprising die-offs. To predict the fate of the world’s woods in the face of climate change, researchers need to understand how trees die.

New noninvasive RNA tests could help identify at-risk pregnancies

The next wave of prenatal screening looks for fragments of RNA within the blood to flag risk of preeclampsia and preterm labor

Reviving a famously polluted California lake

Clear Lake, the state’s largest freshwater body of water, is fouled each year by algal blooms, one of many assaults endured by the battered ecosystem. Can a multipronged plan help it recover?

The fight against an invasive fish in California’s Clear Lake

VIDEO: Can removing carp help the lake’s native fish and keep toxic algal blooms in check?  

Charles Henry Turner’s insights into animal behavior were a century ahead of their time

Researchers are rediscovering the forgotten legacy of a pioneering Black scientist who conducted trailblazing research on the cognitive traits of bees, spiders and more

The extraordinary case of the ferocious female moles

Their genital anatomy, musculature and aggressiveness have made them a model for studying the phenomenon of female masculinization — and demonstrate that sometimes, it’s not easy to tell the difference between male and female

Can probiotics protect corals from problems like bleaching?

Lab experiments suggest that a dose of carefully selected microbes may boost the health of these reef-building creatures and their symbiotic algae

Clever DNA tricks

As cells divide, they must copy all of their chromosomes once and only once, or chaos would ensue. How do they do it? Key controls happen well before replication even starts.

Natural pest control: Plants enlist their enemies’ enemies

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 fossil that launched a dinosaur revolution

PODCAST: Archaeopteryx forever changed our understanding of dinosaurs and the origin of birds, but it took a century after its discovery and a one-page paper to shift scientific consensus (Season 3, Episode 2)

Dealing with rats, and their health, in America’s ‘rattiest’ city

OPINION: A study in Chicago found that rodents surviving poisoning are more likely to carry disease. Good pest control needs to take such things into account.

Nature, nurture and randomness

OPINION: More than genes and upbringing determine animal personalities: There’s a good dose of chance in the mix, too.

Our oceans’ future: Hot and troubled

OPINION: Ocean warming, acidification and deoxygenation due to climate change — as well as pollution and development — threaten our global waters, but disaster is far from inevitable

A shocking number of birds are in trouble

Rich data on the global state of our feathered friends presents plenty of bad news — but also some bright spots. Researchers know better than ever how to help endangered birds, and there are notable bird conservation successes.

Get out in your yard and count bugs

OPINION: How worried should we be about insect declines? Community science is vital for gathering information about arthropods.

Mysteries of the poisonous amphibians

Many brightly colored frogs and salamanders have enough toxins in their skin to kill multiple people. How do they survive their own noxious weapons?

We need to stop bugs at the border

OPINION: Trade and travel come with a shared responsibility for biosecurity

Zoos need to change

OPINION: To justify their existence, they must make conservation their top priority

As glaciers retreat, new streams for salmon

Ecologist Sandy Milner has traveled to Alaska for decades to study the development of streams flowing from melting glaciers. He’s seen insects move in, alders and willows spring up, and spawning fish arrive in thousands.

Animal personalities can trip up science, but there’s a solution

Individual behavior patterns may skew studies. A new approach called ‘STRANGE’ could help, by taking into account the habits, tendencies and life experiences of the creatures under scrutiny.

How animals follow their nose

It’s not easy to find the source of a swirling scent plume. Scientists are using experiments and simulations to uncover the varied strategies that animals employ.

Controlled burns won’t save all of California from wildfire

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.

How lunar cycles guide the spawning of corals, worms and more

Many sea creatures release eggs and sperm into the water on just the right nights of the month. Researchers are starting to understand the biological rhythms that sync them to phases of the moon.

Could getting rid of old cells turn back the clock on aging?

Researchers are investigating medicines that selectively kill decrepit cells to promote healthy aging — but more work is needed before declaring them a fountain of youth

How the brain calculates a quick escape

Whether fly or human, fleeing from danger is key to staying alive. Scientists are beginning to unravel the complex circuitry behind the split-second decision to beat a hasty retreat.

Mistletoes in a warming world

Can the famous parasitic plants help animals to survive climate change, or will they be killed off by extreme weather?

Edith’s checkerspot butterfly: Checkered past, uncertain future

How do animal populations respond to climate change? After studying the same butterfly and its habitats for decades, two biologists explain that it’s complicated — but endlessly intriguing.

As the Arctic warms, beavers move in

Scientists are just beginning to study the impacts of beaver dams on the tundra

A new history for the tropical forests of the Americas

Fossilized leaves and pollen are revealing the evolutionary past of New World tropical forests. The findings are helping to reshape predictions of what might happen to these ecosystems as the climate changes.

Blessed are the (tiny) cheesemakers

Cheese is not just a tasty snack — it’s an ecosystem. And the fungi and bacteria within that ecosystem play a big part in shaping the flavor and texture of the final product.

City birds are changing their tune

Several species of urban-dwelling birds have modified their songs in response to human-generated noise

How to make corn more like cactus

It’s an agricultural moonshot: Scientists hope to increase plant yields by hacking photosynthesis, the process that powers life on Earth

What next-gen Covid-19 vaccines might look like

From building up defenses in the nose to slowing down a virus’s ability to make copies of itself, scientists are rolling out a raft of creative approaches to fighting infection

Color is in the eye, and brain, of the beholder

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 

How truffles took root around the world

For centuries, the wild delicacy grew only in Europe. But improved cultivation techniques have enabled the pricey, odorous fungus to be farmed in new landscapes.

The vital crosstalk between breath and brain

The rhythm of respiration influences a wide range of behaviors, as well as cognition and emotion. Neuroscientists are piecing together how it all works.

The evolution of whales from land to sea

The genomes of cetaceans help tell the story of mammals who returned to the life aquatic

How a giant eagle came to dominate ancient New Zealand

Before the formidable bird went extinct, scientists say, it likely hunted the islands’ flightless moa. Now evidence suggests the eagle was part of a wave of feathered invaders, and its story holds lessons for today and the future.

A treasure hunt for microbes in Chile’s Atacama desert

The famously dry region has long been dismissed as a mostly lifeless wasteland, good for little more than mining of minerals and precious metals. To these researchers, however, it’s a microbial gold mine worthy of protection.

The importance of understanding wildlife sex

OPINION: If we’re truly serious about protecting animal species from extinction, we should learn more about how they reproduce

Cultural transmission makes animals flexible, but vulnerable

From monkeys washing potatoes to cockatoos raiding trash cans, socially spread behaviors allow creatures to adapt more rapidly to changing environments than conventional evolution would allow. But the traits are also more easily lost.

Climate change is altering the chemistry of wine

Warming, wildfires and unpredictable weather threaten to disrupt the delicate processes that underlie treasured wines. Researchers and producers are innovating to keep ahead.

Mitochondria and the origin of eukaryotes

Were the powerhouse organelles a driving force or a late addition in the evolution of more complex cells like ours?

Call of the deep

Some of the ocean’s biggest predators dive way down into the cold, dark depths. Animals-turned-oceanographers are helping biologists find out what they do when they get there.

The creative way to pay for wildlife recovery

OPINION: ‘Pragmatic rewilding’ restores damaged ecosystems and harnesses private money, with benefits for all

The tale of the domesticated horse

The beloved animal has shaped human history over millennia, just as people have influenced its evolution — but only recently have scientists discovered exactly when and where it went from wild to tame

The awake ape: Why people sleep less than their primate relatives

Ancient humans may have evolved to slumber efficiently — and in a crowd

Mining museums’ genomic treasures

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.

Bear hibernation: More than a winter’s nap

The creatures’ annual protracted snoozes have much to tell us about the biology of mammals, ourselves included. Now scientists are watching to see how bears will tweak their habits as the climate warms.

Urban evolution: How species adapt to survive in cities

Plants and animals are evolving in cities around the world — offering ways to study longstanding scientific questions and clues to where climate change is taking us

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error