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Environment

A polar bear near Kaktovik, Alaska. New research reveals how polar bears keep ice off their fur.

How Do Polar Bears Keep Ice Off Their Fur? New Study Reveals the Secret—and It Could Improve Technology

The de-icing properties of polar bear sebum could fuel new innovations, scientists say, potentially unlocking alternatives to harmful “forever chemicals” used in ice-resistant coatings today

Embers from the Eaton Fire fly down a residential street in Altadena, California, on January 8.

How A.I. Can Help Humans Battle Wildfires, From Advanced Camera Systems to Forecasting Models

A variety of new technologies aim to improve wildfire detection and help map the spread of blazes

A tiger keelback feeds on poisonous toads and stores the poison for its own use.

Six Clever Snakes to Celebrate as We Slither Into the Lunar New Year

These fascinating serpents embody acclaimed qualities including cunning and intelligence

BlueGreen Water Technologies treats a harmful algal bloom in Doctors Lake in Clay County, Florida.

How Cleaning Up Harmful Algal Blooms Could Help Fight Climate Change

A company called BlueGreen Water Technologies aims to remove carbon dioxide from the atmosphere while also fighting algae’s toxic effects on people and the environment

Archaeologists and Masai landowners conducted excavations at Engaji Nanyori in Tanzania.

Homo Erectus Thrived in a Desert, Study Finds, Suggesting the Early Humans Could Adapt to Extreme Environments

New research suggests modern humans aren’t the only hominin species capable of “ecological flexibility”

The finished national anthem included the calls of 41 birds.

How Scientists and Composers Teamed Up to Create a Stunning Natural Version of Colombia’s National Anthem

A team trekked for two weeks and collected the sounds of birds, frogs, a jaguar and whales in order to make the song

The trees became visible as an ice patch melted on the Beartooth Plateau, which is part of the Greater Yellowstone Ecosystem.

Melting Ice Reveals Remains of 5,900-Year-Old Trees in Wyoming, Uncovering a Long-Lost Forest

Researchers discovered more than 30 dead whitebark pine trees that were entombed in ice for millennia, representing a bygone ecosystem that could teach us about climate change

One of the two recaptured lynx—another two are still on the loose

Four Lynx Have Been Illegally Released Into the Scottish Highlands. Officials Think ‘Guerrilla Rewilding’ Is to Blame

So far, only two of the four lynx have been recaptured, leaving authorities scrambling across the snowy woods to find the missing cats

A northern saw-whet owl in Canada

Meet the Tiny, Adorable Owls That Have Mastered the Art of Hiding

One of the smallest owls in North America, the northern saw-whet lives among us and is rarely seen—but one volunteer science project aims to find them and uncover their secrets year after year

These four lightbulbs augured a future with nuclear power.

On This Day in History

On This Day in 1951, Four Illuminated Lightbulbs in Idaho Were Evidence of the First Time a Nuclear Power Plant Generated Electricity

Although it was just a byproduct of developing a new type of reactor, the generation of electricity from nuclear energy signaled a bright future ahead

Paleontologists made discoveries about a wide variety of dinosaurs over the past 12 months.

The Top Ten Dinosaur Discoveries of 2024

From the realization that paleontologists still haven’t found the biggest dinosaurs to the unearthing of a small burrowing dino, the year has been marked by awe-inspiring finds

Researchers found that in 2023, a decrease in low-altitude clouds, specifically over the Atlantic Ocean, drove an increase in the planet's temperature.

Scientists Find Another Reason Why 2023 Was So Hot: a Decline in Low-Lying Clouds

According to new research, Earth might have reflected less solar radiation last year than in any other year since 1940, a trend that adds to the planet’s warming

More than 3,000 known dragonfly species exist.

14 Fun Facts About Dragonflies, From Their Lethal Hunting Prowess to Incredible Migratory Feats

The colorful insects can help humans by eating mosquitoes and will gather in mysterious swarms

The sun sets over Death Valley, California, on July 7, 2024, a day when its temperature reached 129 degrees Fahrenheit.

Climate Scientists Project 2024 Will Be the Hottest Year on Record—and the First to Pass 1.5 Degrees Celsius of Warming

After November 2024 was the second warmest November in the books, experts say the year is “effectively certain” to break the heat record set by 2023

Smithsonian magazine’s top science titles this year.

The Ten Best Science Books of 2024

From a deep dive on a fatal space shuttle disaster to a study of a dozen iconic trees, these are our favorite titles this year

A policeman uses flares to guide traffic during the Great Smog of 1952.

On This Day in History

How an Extreme Combination of Fog and Air Pollution Brought London to a Standstill and Resulted in Thousands of Fatalities

On this day in 1952, buses stood still, cars were abandoned in the street, and residents couldn’t see even a few feet in front of themselves as the lethal Great Smog descended on the city

Grazing cows produce more methane than feedlot cows because of the fiber content of the grass they consume.

Eating Seaweed Could Make Cows Less Gassy, Slashing Methane Emissions From Grazing by Nearly 40 Percent

A new study finds that feeding seaweed pellets to grazing beef cattle dramatically reduces their greenhouse gas emissions

The plant-based egg substitutes available today are less than perfect. Food scientists are working hard to improve them — and, maybe, make them better tasting and more nutritious than the real thing.

Scientists Are Trying to Crack the Recipe for the Perfect Plant-Based Eggs

With new ingredients and processes, the next generation of substitutes will be not just more egg-like, but potentially more nutritious

A painted lady perches on a flower.

Where Do Butterflies Migrate From? Clues Can Be Found in Pollen on Their Bodies

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

Lake Tahoe's Emerald Bay is one of the sites where telephone cables were recently removed from.

Crews Remove Miles of Abandoned, Lead-Coated Telephone Cables From the Bottom of Lake Tahoe

The cables have been resting on the lakebed for decades, raising fears from environmentalists and residents about possible lead contamination

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