Meteorological records from USS Pennsylvania, seen here off the Virginia coast in 1927, helped fill a gap in 20th century marine weather records.

How Citizen Scientists Rescued Crucial World War II Weather Data

Newly declassified documents from the Pacific theater have been digitized and could improve climate models

Dividing the estimated length of 240,000 miles of stone wall by the geographic area of the New England heartland yields about six linear miles of stone per square mile of land.

How Stone Walls Became a Signature Landform of New England

Originally built as barriers between fields and farms, the region’s abandoned farmstead walls have since become the binding threads of its cultural fabric

In recent years, the European perch (Perca fluviatilis) population has been steadily declining due to the combined impact of climate change, pollution and overfishing.

Italian Divers Revive Centuries-Old Tradition to Help Save European Perch

Nurseries built from bundles of tree branches may help conserve the freshwater fish in the age of climate change

In the village of Tautira, Tahiti, the community came together to impose their own set of fishing restrictions to ensure the availability of fish into the future.

How an Ancient Practice Aids Marine Conservation

In French Polynesia, the art of rahui puts everyone in charge of protecting the sea

Contact between Europeans and Native Americans is recorded in the DNA of head lice.

When Did Humans Arrive in the Americas? Lice Help Answer That Head-Scratcher

A new analysis of the annoying critters shows when groups from Asia and Europe hitched rides on human hair and skin to arrive on our continent

Basilosaurus hunts fish.

Ancient Whales Were the Biggest and Smallest of Their Kind to Ever Roam the Oceans

New discoveries show how whale diversity exploded after the dinosaurs disappeared

Julie Packard by Hope Gangloff is on view at the National Portrait Gallery in the new show, "Forces of Nature: Voices That Shaped Environmentalism."

Meet the Steely Gaze of Environmentalism

A new show at the National Portrait Gallery focuses on the defenders of Mother Earth over the past 150 years

A group of chimpanzees at elevation listen for rivals.

While Some Chimps Go Low, Others Go High to Avoid a Dangerous Fight

Primate groups climb to elevation to scout out rivals and steer clear of clashes

The Aftel Archive of Curious Scents has been drawing commercial perfumers with a nose for aromas, gardeners, cooks and others since 2017.

This California Museum Is Home to Hundreds of Nature’s Scents

Perfumer Mandy Aftel’s spellbinding collection of rare essences and artifacts is on display at the Aftel Archive of Curious Scents in Berkeley

A tornado churns up dust at dusk near Traer, Iowa.

How and Why Do Violent Tornadoes Form?

Scientists hope new technology and computing power will help them understand destructive twisters

A captive breeding program has seen the return of Galápagos giant tortoises to Española in the Galápagos Islands. As the tortoise population rebounds, the island ecosystem is in the process of transforming.

Galápagos Giant Tortoises Are Ecosystem Engineers

A decades-long project shows how the reptiles are changing the island of Española

The annual Woolly Worm Festival is a fiercely popular local event that’s been going on for nearly half a century.

Groundhogs Are Old News. In This Tiny Town, Caterpillars Predict the Weather

Thousands of people flocked to Banner Elk, North Carolina, this year to watch the nation’s biggest woolly worm caterpillar race

Carved Cucurbita pepo traditionally grace stoops around Halloween.

Five Tips and Tricks for a Perfect Jack-O’-Lantern

A horticulturalist with the New York Botanical Garden provides advice for prolonging the life of your pumpkin

An experimental replica of shell beads with Natufian red organic colorant made from the roots of Rubiaceae plants

Archaeologists Find the First Red Paint Made From Plants

Hunter-gatherers cooked up the alluring pigment in the Eastern Mediterranean 15,000 years ago

A new generation of blood pressure measuring devices that don’t require an inflatable cuff around the arm may make it easier to manage hypertension.

New Devices Could Change the Way We Measure Blood Pressure

Embedded in a cellphone or in accessories such as rings, bracelets or watches, the novel tools aim to make it easier to manage hypertension

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How Scientists Tracked the Movements of a 17,000-Year-Old Woolly Mammoth

Isotopes tell the epic tale of one ancient mammal’s odyssey across Alaska

Can every living thing be traced to a single cell?

Can Every Living Thing Be Traced to a Single Cell? And More Questions From Our Readers

You’ve got questions. We’ve got experts

With a baby in tow, a gray-headed flying fox uses her large eyes to navigate, rather than relying on echolocation as other bat species do. 

Why Australians Are Growing to Appreciate These Giant, Threatened Bats

Once seen as a menace, the gray-headed flying fox brings new life after recent devastating wildfires

A shot of Hurricane Ian, taken from the International Space Station on September 28, 2022

Atlantic Hurricanes Are Getting More Dangerous, More Quickly

If such changes are in response to climate change, the future may feature more sudden, daunting storms

In 1980, the Viking Orbiter took 102 individual images of Mars that scientists eventually assembled into this stunning composite photo. The dark gash across the planet’s face is the Valles Marineris, a canyon that’s up to 6 miles deep and over 2,500 miles long.

The Seven Most Amazing Discoveries We’ve Made by Exploring Mars

Scientists have learned a lot since they started sending crafts and rovers to our red neighbor

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