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Environment

Animal life seemed to explode into a wide variety of new forms in the Cambrian period.

What Led Life to Flourish Roughly 520 Million Years Ago?

Changes to the world’s oceans and the rise of certain predators may have driven diversification

Maasai Mara National Reserve, Kenya

See Ten Gorgeous Photographs of Lions and Discover What Makes the Majestic Felines Special

A new book of essays and images reveals the history of the big cats and how they’ve become a vulnerable species today, and uncovers little-known facts about them

Many different types of animals, from birds to orcas, are affected by human noise.

Five Dramatic Ways Animals Respond to Human Noise, From Mimicking Car Alarms While Wooing Mates to Calling Higher Over the Din of Traffic

As human-caused sound gets louder around the world, some animals change their behavior and many creatures suffer health issues

Dustin Partridge of the New York City Bird Alliance looks for migrating birds during the 2024 Tribute in Light in New York City.

The New Science of Aeroecology Reveals So Much About the Amazing Creatures That Populate the Skies and How Humans Can Ensure Their Survival

The sky above us is a complex ecosystem, just like the land and sea. A new field of research is bringing a fresh understanding of the birds, bugs and other species that live there

The only human development on Tetepare is a small research center and ecolodge on the western corner of the island, which is otherwise covered in lush rainforest and lined by coral reefs and meadows of seagrass.

Why Is Tetepare the South Pacific’s Largest Uninhabited Island?

Descendants of the island’s former inhabitants struggle to balance environmental conservation with sustaining their community’s livelihoods

Mexican tetras lost their eyes in multiple ways.

These Cavefish Lost Their Eyes, but They Gained Some Pretty Nifty Traits

Mexican tetras that got swept into pitch-black caverns had no use for the energetically costly organs

Scientists found evidence of "inbreeding depression" among eastern massasauga rattlesnakes in Michigan.

Habitat Loss Is Leading to Inbreeding Among Michigan’s Only Species of Venomous Snake

Roads, buildings and other manmade barriers are preventing the small pit vipers from slithering around to find mates from other populations

Early whales walked on land and swam in the shallows to hunt.

Before Whales Took to the Sea, These Ten Species Walked on Land

The creatures, which ranged in size from that of a fox to more than 50 feet long, divided their time between the coast and the water

Several species have evolved in response to human environmental impacts.

Five Astounding Ways Humans Are Driving Animal Evolution, Including Causing Lizards to Grow Longer Legs and Leading Moth Populations to Become Darker

When people build cities and introduce invasive creatures, resident critter populations sometimes adapt

Artist illustration of a pack of Borophagus secundus

What Happened to the Bone-Crushing Dogs That Once Hunted Across North America?

Before going extinct roughly two million years ago, canids known as borophagines took down and consumed much larger prey

Researchers collect soil samples in Tierra del Fuego, Chile.

More Than 90 Percent of the World’s Fungal ‘Hotspots’ Are Not Protected, New Study Suggests

Mycorrhizal fungi play an essential role in climate regulation and ecosystem health, and researchers have used A.I. to predict the locations that host a high diversity of these underground organisms

Feral cats have made their home on Fire Island.

Why Fire Island Has Seen an Explosion of Feral Cats

In New York’s only federal wilderness area, the loss of a key predator has led to the rise of a new one—with dire consequences for the island’s native birds

A large prawn walks over a field of mineral-rich nodules in the Clarion-Clipperton Zone (CCZ).

As Interest in Deep-Sea Mining Grows, Scientists Raise Alarms About the Possible Ecological Consequences

Gathering minerals such as nickel, cobalt, manganese and lithium from the seabed could affect everything from sponges to whales. The long-term effects of these extractions remain uncertain

Harpy eagles feed on sloths and monkeys.

Why Did a Large Harpy Eagle Attack an Adult Woman?

The incident, which took place in the forest in French Guiana, was an extremely rare occurrence

Ancient sloths lived in trees, on mountains, in deserts, in boreal forests and on open savannas. Some grew as large as elephants.

Giant Sloths and Many Other Massive Creatures Were Once Common on Our Planet. With Environmental Changes, Such Giants Could Thrive Again

If large creatures like elephants, giraffes and bison are allowed to thrive, they could alter habitats that allow for the rise of other giants

A dark cloud of starlings shapeshifts over Rome.

A Closer Look at the Kestrels, Hedgehogs and Other Wild Animals That Inhabit Rome

From antiquity to modern times, the city has been rife with creatures that creep, slither, scurry and nest among its pillars and palaces

One of the Central Park coyotes trots by with the New York City skyline as a backdrop.

In a Milestone for Manhattan, a Pair of Coyotes Has Made Central Park Their Home

For six years, two photographers have carefully followed the canines and documented their secret lives

A Honduran white bat (Ectophylla alba) flies from its roost.

Ten Stunning Nature Photos From the BigPicture 2025

From the beautiful to the bizarre, this annual photographic showcase shines a light on some of our planet’s most breathtaking species and places

Some sebecids grew to lengths of 20 feet.

After Crocs and Lemurs Went Extinct on the Mainland, Many Survived on Islands for Millions of Years

Isolation allows creatures to thrive as their relatives perish due to the threats present on much larger landmasses

A sandhill crane stands over a Canada gosling it adopted in Madison, Wisconsin. Such interspecies adoptions appear to have become more common in recent years.

These Sandhill Cranes Have Adopted a Canada Gosling, and Birders Have Flocked to Watch the Strange Family

Ornithologists and locals wonder what the future holds for this chick being raised by much taller, but still doting parents

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