This image diagrams the difference between human and chimpanzee models of thumb muscles, which the researchers used to study the evolution of thumb dexterity.

How Dexterous Thumbs May Have Helped Shape Evolution Two Million Years Ago

Fossils and biochemical models show tool-wielding hominins used their hands like we do today

Signals from smartwatches can help catch infections early.

Covid-19

Can Smartwatches Be Adapted to Help Detect Covid-19 Infections?

With new algorithms, wearable devices—collecting vital signs like heart rate and skin temperature—could catch illness early

These walrus ivory carvings were collected in the mid-1880s. They were featured in a catalogue for the exhibition "Looking Both Ways: Heritage and Identity of the Alutiiq People" at the Smithsonian’s National Museum of Natural History in 2003.

Smithsonian Voices

How Arctic Anthropologists Are Expanding Narratives About the North

Studying past Arctic cultures and working with today’s northern communities to address present-day socioeconomic and environmental challenges

This telescope located in Cerro Tololo, Chile is just one of many within the MicroObservatory Robotic Telescope Network.

Smithsonian Voices

With This New Digital Telescope Tool, Anyone Can Access the Heavens

This freely available technology tool provides a unique learning experience for budding astronomers and artists alike

"Yellowknife Flurry," a photograph by Nathan Myhrvold, captures the intricate structure of snowflakes.

These Are the Highest-Resolution Photos Ever Taken of Snowflakes

Photographer and scientist Nathan Myhrvold has developed a camera that captures snowflakes at a microscopic level never seen before

An Argo float, seen in the foreground, is a battery-powered device that automatically measures and transmits information about the environment.

How the Pandemic Is Undermining Weather Monitoring

Scientists are scrambling to patch the cracks forming in the global marine weather monitoring system

Soil samples collected throughout the western United States show the wide variety of minerals and colors belowground.

Art Meets Science

Meet the Soil Scientists Using Dirt to Make Stunning Paints

Professors in California and Wyoming use the unique palettes to teach geology

Seabird guano covers a small island off the coast of Peru.

Ancient South American Civilizations Bloomed in the Desert Thanks to Seabird Poop

Prehistoric farmers fertilized their crops with the waste, which they imported from the coast

Grōv Technologies’ vertical farm is designed to minimize land and water use of conventional feed production.

Could Indoor Vertical Farms Feed Livestock?

The people at Grōv Technologies think farmers can produce wheatgrass for their herds with less land and water using the method

A mountain lion kitten grabs onto its mother’s hind legs.

How Wolves Are Driving Down Mountain Lion Populations

A recent study from Wyoming shows that when the two predators overlap, wolves kill kittens in high numbers and push adults to starvation

A volunteer donates blood during an event at the Field Museum in Chicago in May, 2020.

What Scientists Are Learning About Covid-19 Using the Nation’s Blood Supply

Labs and blood banks collect millions of blood samples each month, offering a distinctive source of data on the disease

The fossil of Aphelicophontes danjuddi, a new genus and species of assassin bug, accompanied by the fossil of a small beetle

Ancient Insect Genitals Found in 50-Million-Year-Old Fossil

A newly discovered assassin bug features a well-preserved phallus the size of a grain of rice

The Volta’s electric eel, Electrophorus voltai, emits the strongest shocks of any animal on Earth. Although these eels were thought to be loners, the species was recently seen hunting in a group.

Smithsonian Voices

Shocking Study Finds Electric Eels Hunt Together

The study challenges what researchers know about eels’ supposed loner behavior

Lightning strikes over the Atlantic Ocean off the coast of Florida.

Why Are Lightning ‘Superbolts’ More Common Over the Ocean?

Salt seems to be the reason why bolts are brighter over seas than over land

Scientists estimate this pig painting was drawn 45,500 years ago.

45,000-Year-Old Pig Painting in Indonesia May Be Oldest Known Animal Art

Ice Age cave painters flourished in Southeast Asia, where their work adorned rock walls

A meteorite in the process of being recovered by volunteers in the Antarctic Search for Meteorites program. The shiny fusion crust on this meteorite suggests it may be an achondrite.

Smithsonian Voices

What Antarctic Meteorites Tell Us About Earth’s Origins

Each year, Smithsonian scientists collect hundreds of meteorites from Antarctica that reveal details about the origins of Earth and our solar system

Intense visions and confusion about the reality of hospitalization can be especially scarring, leaving patients with intrusive thoughts, flashbacks and vivid nightmares. If such responses persist for more than one month and cause functional impairment or distress, it may be diagnosed as PTSD.

Why PTSD May Plague Many Hospitalized Covid-19 Survivors

Scientists warn about the likelihood of post-traumatic stress disorder for patients discharged from the intensive care unit

The brown tree snake slithers through vegetation.

Invasive Brown Tree Snakes Stun Scientists With Amazing New Climbing Tactic

The successful predator, which has decimated bird populations on Guam, lassoes its body around poles in order to propel itself upwards

This month's book picks include Icebound, A Shot in the Moonlight and The Eagles of Heart Mountain.

Books of the Month

A Doomed Arctic Expedition, Number-Free Math and Other New Books to Read

These five January releases may have been lost in the news cycle

Researchers are hoping to track the conditions lobsters experience as they travel through the supply chain with an eye to reducing the number that die along the way.

A New Device Tracks Lobsters as They Move Through the Supply Chain

Researchers hope the technology can be used to reduce the number of the crustaceans that die along the way

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