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Biodiversity

By combining ecological data-gathering with philosophical contemplation, Leopold bridged the art and science of conservation.

America at 250: The Revolutionary Spark

In the Early 1900s, a Young Ecologist Shot a Wolf and Watched the Life Leave Its Eyes. That Changed His Position on Conservation

Aldo Leopold’s writing reconsidered the place of humans in the natural world and challenged people to be less conquerors of the land and more citizens of it

Western Australia’s Ningaloo coast

Scientists Detect an Elusive Giant Squid and Many Other Surprising Marine Animals Near Western Australia Thanks to DNA in the Water

Mucus, feces, skin and other shed tissue allowed researchers to investigate which creatures have been swimming in two deep-sea canyons without having to observe or catch them

Even common backyard birds like house finches are disappearing.

North American Bird Losses Are Accelerating. New Research Suggests Fertilizers and Pesticides May Be to Blame

Scientists found the severest changes in decline rates in places that include hallmarks of high-intensity agriculture

Researchers have collected more than 50,000 fossil specimens from a quarry in southern China.

A Fossil Trove in China Provides a Rare Window Into a Mass Extinction Event That Happened More Than 500 Million Years Ago

Paleontologists have identified thousands of animal species that lived soon after the Cambrian explosion ended

The manumea is the national bird of Samoa, but it's on the brink of extinction.

Elusive, Critically Endangered Bird—and One of the Closest Living Relatives of Dodos—Was Spotted for the First Time in Five Years

Conservationists are racing to save the manumea, a chicken-sized bird that lives only on two Samoan islands, from extinction

The researchers examined 3D reconstructions of hundreds of ant exoskeletons.

Some Ants Sacrifice Stronger Exoskeletons for Larger Colonies, Which May Help Them Take Over New Environments

Species with thinner protective barriers may need fewer resources and tend to have a greater ability to adapt to new habitats, a study suggests

Eastern hellbenders are known as "snot otters" because they're covered in a slimy, protective coating.

Scientists Are Releasing the Lovingly Nicknamed ‘Snot Otters’ Into Ohio Waterways in a Big Success for Conservation

Eastern hellbenders, the largest amphibians in North America, are in trouble, but conservationists are hard at work to help the wrinkled wonders survive

To capture snake strikes on video, scientists put medical gel on a stick and warmed it to mimic the body temperature of a mammal. Then, they waited for the snakes to attack.

Slow-Motion Videos Reveal What Really Happens When Snakes Bite

Different snakes put their own spin on striking their prey. Scientists captured the powerful attacks on camera

According to new research, the Chicago River has become significantly cleaner and healthier in recent decades. 

Fish Are Spawning in the Chicago River, Another Sign the Once-Contaminated Waterway Is Rebounding

A new study suggests at least 24 species of fish are reproducing in the urban river, adding to the evidence that it is getting cleaner and healthier

Due to conservation efforts, more than 240 kākāpō live on sanctuary islands, but the species remains critically endangered.

New Zealand’s Massive Green Parrots Have Narrowly Avoided Extinction. But Many of Their Parasites Did Not Survive

A study examining fossilized droppings reveals the kākāpō has faced a decline in the diversity of its parasites—and that might not be a good thing

A juvenile blacktip reef shark swims in shallow waters by the mangroves in Palau. This image was highly commended in the underwater category.

See 11 Stunning Images of Mangrove Forests and Their Wildlife, Showcasing the Trees’ Beauty and Fragility

The winners of the Mangrove Photography Awards shed light on the ecologically valuable but highly threatened coastal ecosystems

 The scientists found R. wellingtoni in two different color combinations, black-purple and red-black.

Scientists Just Found a Coral Species They Thought Had Gone Extinct, Marking the First Record of It in 24 Years

After the 1982-1983 El Niño warming event, the coral endemic to the Galápagos Islands experienced sharp population declines and was rarely observed during surveys

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

The population of golden oyster mushrooms has particularly exploded in the Midwest and Great Lakes region.

Invasive Golden Oyster Mushrooms Are Crowding Out Native Fungi and Could Slash Biodiversity in Forests, Study Suggests

Researchers found that trees in Wisconsin that had become hosts to the eye-catching species hosted only half the fungal biodiversity of trees that had not been invaded

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

A stingray swims on the ocean floor. Several shark and ray species are threatened with extinction due to overfishing, climate change and habitat loss.

More Countries Agree to Protect the ‘High Seas’ in a Step Toward Wider Ocean Conservation

The High Seas Treaty, which would allow nations to create marine protected areas in international waters, is now expected to take effect in early 2026—without the United States on board

This June, North Carolina's Jockey's Ridge is celebrating 50 years as a state park.

How an Indomitable Environmental Activist Saved the Outer Banks From Impending Development

Fifty years ago, Carolista Baum passionately fought to create Jockey’s Ridge State Park, an unusually biodiverse ecosystem of dunes, thickets and marshes

The endangered Woodville Karst cave crayfish (Procambarus orcinus)

Freshwater Animals Are More Fragile Than Thought, With Nearly a Quarter Threatened With Extinction, Study Finds

Species in Lake Victoria, Lake Titicaca, Sri Lanka’s Wet Zone and the Western Ghats of India are particularly vulnerable to the effects of agriculture, human infrastructure and climate change, per the paper

At least 16,425 of the 47,282 tree species examined in a new IUCN report are at risk of extinction.

More Than One in Three Tree Species Around the Globe Are at Risk of Disappearing, New Report Finds

An assessment from the International Union for Conservation of Nature paints a grim picture of the extinction risk of the world’s trees

A selection of the bounty from Isabella Dalla Ragione’s orchard, including apples, pears, plums, almonds, hazelnuts and grapes.

Meet the Italian ‘Fruit Detective’ Who Investigates Centuries-Old Paintings for Clues About Produce That Has Disappeared From the Kitchen Table

Renaissance paintings, medieval archives, cloistered orchards—how one Italian scientist is uncovering secrets that could help combat a growing agricultural crisis

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