The word "teetotaler" dates back to the temperance movement that preceded Prohibition.

Where Does the Word ‘Teetotaler’ Come From? And More Questions From Our Readers

You’ve got questions, we’ve got experts

Scientists are starting to get a better idea of how many factors can influence a newborn's gut microbiome.

Babies Born by C-Section Have Different Gut Microbes Than Vaginally Delivered Infants

Method of delivery can influence the bacteria in infants’ guts, according to a new study, but differences were found to disappear within nine months

Sochan, a relative of the sunflower, can grow up to ten feet tall. Packed with vitamins and minerals, it rivals kale as a nutritional powerhouse.

Cherokee Indians Can Now Harvest Sochan Within a National Park

For the first time, the indigenous community is allowed to gather the cherished plant on protected land

Margaret Rossiter's research spotlights the women in science whose intellectual contributions have not been given their due.

Women in Science

Women Scientists Were Written Out of History. It’s Margaret Rossiter’s Lifelong Mission to Fix That

The historian has devoted her career to bringing to light the ingenious accomplishments of those who have been forgotten

Visualization of a diffusion tensor imaging (DTI) measurement of a human brain. Depicted are reconstructed fiber tracts that run through the mid-sagittal plane.

The Gut Microbiome Could Speed Up the Progression of Alzheimer’s Disease

The microbes in the gastrointestinal tract influence the immune system and the brain, possibly playing a role in the development of Alzheimer’s

An artist's illustration of the planet K2-18b and another planet, K2-18c, that orbits closer to the parent star. Both planets orbit a red dwarf about 110 light-years from Earth in the constellation Leo.

Water Vapor Detected in the Atmosphere of an Exoplanet in the Habitable Zone

The planet K2-18b, about 110 light-years away, could have swirling clouds and falling rains of liquid water droplets

At right is a left front foot followed by the hind foot of the mysterious Chirotherium, or "hand beast." The tracks were first found in the German town of Hildburghausen.

The Long, Strange Tale of the Hand Beast Footprints

A Triassic creature left curious tracks in the sandstone; it took decades to unravel the mystery

The National Zoo's female panda Mei Xiang (above in 2019) is exhibiting signs of a possible pregnancy. These same behaviors could also mean she is experiencing a pseudopregnancy.

Pandamonium

14 Fun Facts About Giant Pandas

Mother Mei Xiang’s annual ambiguous maternal behaviors always deliver heightened anticipation at the National Zoo

Electrophorus voltai, a newly discovered species of electric eel, pictured swimming in the Xingu River, a southern tributary of the Amazon.

Smithsonian Researchers Triple the Number of Electric Eel Species, Including One With Record-Setting Shock Ability

It’s literally shocking news

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How Scientists Are Learning to Tell a Bird’s Age by Its Song

Take a journey into this ornithologist’s world tracking a pair of antshrikes in Panama’s Soberania National Park

Fishermen in Milwaukee during the salmon run.

Milwaukee’s Secret Salmon Runs

In the spring and fall, watch huge salmon fly up two rivers in Milwaukee to spawn with the city as a backdrop

Kelsi Rutledge, a UCLA PhD student in biology, and a museum specimen of a new species of ray called a guitarfish from the Gulf of California, Pseudobatos buthi, or "spadefish."

Scientist Lampoons Birth Announcements With Discovery of New ‘Spadenose’ Ray

The new species sees the light of day after more than 70 years tucked away in museum collections

An artist's depiction of an asteroid impacting the Earth.

What Happened the Day a Giant, Dinosaur-Killing Asteroid Hit the Earth

Using rock cores from Chicxulub crater, geologists piece together a new timeline of the destruction that followed impact

Images and measurements of the fossil beetle that revealed it was a different kind of beetle than originally thought.

Fossil Mix-Up Could Rewrite the History of Beetles, the Largest Group of Animals on Earth

The reclassification of a 226-million-year-old beetle species could change our understanding of insect evolution

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Riveting Footage Captures the Destruction of Last Year’s Volcanic Eruptions in Hawai‘i and Guatemala

A new documentary from Smithsonian Channel shows the explosive activity at the Kilauea and Fuego volcanoes

A photograph of a red slipped ware globular pot placed near the head of the skeleton that yielded ancient DNA. There are lines as well as indentations on the upper right side, just below the rim. The indentations on the body of the pot could be examples of ancient graffiti and/or "Indus script."

Rare Ancient DNA Provides Window Into a 5,000-Year-Old South Asian Civilization

The Indus Valley Civilization flourished alongside Mesopotamia and Egypt, but the early society remains shrouded in mystery

By comparing the skulls of extinct dinosaurs to those of living relatives, such as crocodiles and wild turkeys, researchers have conclude that the prehistoric beasts had sophisticated thermoregulation systems in their skulls.

Special Skull Windows Helped Dinosaur Brains Keep Cool

Dinosaur skulls had many cavities and openings, some of which may have held blood vessels to help cool off the animals’ heads

By day the members of the Megatherium Club, united by youth, ambition, intelligence and a deep and abiding love of the natural world, hunched over jars of marine worms in alcohol or endless trays of fossils…At night they were ready to cut loose.

The Hard-Drinking Early Smithsonian Naturalists of the Megatherium Club

William Stimpson created a fraternity of young scientists and named it for an extinct North American sloth

Using heavy picks, Smithsonian researchers in 1923 worked on excavations in Dinosaur National Monument on the border of Colorado and Utah.

How to Discover Dinosaurs

Smithsonian paleontologist Hans Sues reveals some of his tips for finding and excavating a Mesozoic monster

In groundbreaking clinical trials, researchers are trying to treat patients by editing the genetic makeup of cells with a tool called CRISPR.

Four U.S. CRISPR Trials Editing Human DNA to Research New Treatments

Breaking down how the gene editing technology is being used, for the first time in the United States, to treat patients with severe medical conditions

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