Manta Rays Use Tiny Fish to Help Them Stay Clean

Wrasse perform a vital cleaning function for other fish, by ridding their bodies of dead cells and parasites

A large female Greenland shark observed near the community of Arctic Bay, Nunavut.

New Research

The World’s Most Ancient, Elusive Sharks Were Finally Caught on Video

Greenland sharks, which can live more than 400 years, reveal how little we know about life in the coldest oceans

Kinorhynchs (aka mud dragons) range in size from about 0.13 to one millimeter. Like other meiofauna species, they are integral parts of marine food chains in sediments throughout the world.

King of the Mud Dragons

Robert Higgins has spent his career dredging out tiny creatures from dirt and obscurity

Margaret Hamilton, Katherine Johnson, Sally Ride, Nancy Grace Roman, Mae Jemison

Women Who Shape History: Education Resources

For use in the classroom or your community, a list of lesson plans and other teaching materials on women’s history in America

An endocast revealing the brain of an Iguanodon, an herbivorous dinosaur of the early Cretaceous period. This was the first fossilized dinosaur brain found by modern scientists, announced in 2016.

Women Who Shaped History

The Woman Who Shaped the Study of Fossil Brains

By drawing out hidden connections, Tilly Edinger joined the fields of geology and neurology

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Women Who Shaped History

Women Who Shaped History

Collecting the stories of women who forever changed the course of the American story

Illustration made using an 1851 portrait of Mitchell by H. Dassell and a false-color image of supernova remnant Cassiopeia A by NASA.

Women in Science

Women Who Shaped Science

Smithsonian.com is sharing the stories of women scientists who also changed the world, but were written out of history.

Nicknamed the Hand of God, this pulsar wind nebula is powered by a pulsar: the leftover, dense core of a star that blew up in a supernova explosion. Before astronomers had any idea what they were, Jocelyn Bell Burnell found the signal of a pulsar in her telescope data in 1967.

Women Who Shaped History

Fifty Years Ago, a Grad Student’s Discovery Changed the Course of Astrophysics

By identifying the first pulsars, Jocelyn Bell Burnell set the stage for discoveries in black holes and gravitational waves

A drone image of a breeding colony of Greater Crested Terns. Researchers used plastic bird decoys to replicate this species in an experiment that compared different ways of counting wildlife.

New Research

When It Comes to Counting Wildlife, Drones Are More Accurate Than People

Technology could be a conservation gamechanger, but we need to interrogate its impact on wildlife

Easter Island is home to at least 142 endemic species, including the Easter Island butterfly fish.

Chile Announces Protections for Massive Swath of Ocean With Three New Marine Parks

The almost 450,000 square miles encompass a stunning diversity of marine life, including hundreds of species found nowhere else

Thousands of years ago, a herd of Columbian mammoths trudged across present-day Oregon to an ancient lake, recording their interactions in the muddy sediments.

New Research

Rare Mammoth Tracks Reveal an Intimate Portrait of Herd Life

Researchers piece together a 43,000-years-old tableau of an injured adult and concerned young

Turtle Hatchlings Face Death While Dashing to Ocean

On the beaches of the Great Barrier Reef, the first turtle hatchlings emerge from their shells and make a run for the ocean

At La Pasiega in Spain, the scalariform, or ladder shape, composed of red horizontal and vertical lines (center left) dates to older than 64,000 years.

New Research

Were Neanderthals the Earliest Cave Artists? New Research in Spain Points to the Possibility

Archaeologists pushed back the date of cave paintings at three sites to 65,000 years ago—20,000 years before the arrival of humans in Europe

After Audubon's health began to fail, his family completed the project, producing the color plates in installments for about 300 subscribers.

The Fantastic Beasts of John James Audubon’s Little-Known Book on Mammals

The American naturalist spent the last years of his life cataloguing America’s four-legged creatures

When it comes to ancient remains, isotope analysis could help scientists separate dogs from wolves.

New Research

Dogs and Humans Didn’t Become Best Friends Overnight

First, we feared and ate them, a new isotope analysis reveals

Hamsters are nearsighted and colorblind. To find their way through dense fields, they rely on scent trails.

Why Are These Hamsters Cannibalizing Their Young?

Scientists are stalking French cornfields to find out

A British Columbia rainforest, where Douglas firs soar more than 160 feet, supports 23 native tree species.

Ask Smithsonian

Do Trees Talk to Each Other?

A controversial German forester says yes, and his ideas are shaking up the scientific world

A team of researchers in northern Australia have documented kites and falcons, “firehawks,” intentionally carrying burning sticks to spread fire: It is just one example of western science catching up to Indigenous Traditional Knowledge.

When Scientists “Discover” What Indigenous People Have Known For Centuries

When it supports their claims, Western scientists value what Traditional Knowledge has to offer. If not, they dismiss it

Fifty years after researchers dismissed the idea of learning while you sleep, we now know that sound and smell cues can reactivate memories during this time of rest.

Sleep-Learning Was a Myth, But You Could Strengthen Memories While You Snooze

Neuroscientists find that sound and smell cues could solidify lessons you learn during the day

Many animals, like this red sphinx cat, are bred to be hairless. Other times, animal baldness is a symptom of stress and other factors.

Ask Smithsonian

Do Other Animals Besides Humans Go Bald?

From Andean bears to Rhesus macaques, non-human mammals have hair woes of their own

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