Migration

The sea eagle, native to Asia—specifically China, Japan, Korea, and Eastern Russia—has been spotted thousands of miles away from its range in places as far south as Texas and as far North as Alaska.

Thousands of Miles Away From Home, This Steller's Sea Eagle Couldn't Be Any More Lost

Now in Nova Scotia, the Asian raptor has been spotted several times in North America in the past year and a half

The naturally mummified remains were remarkably well preserved, with some still sporting clothing and hair.

New Research Reveals Surprising Origins of Millennia-Old Mummies Found in China

Once thought to be migrants from West Asia, the deceased were actually direct descendants of a local Ice Age population, DNA analysis suggests

Chinese railroad workers near the Secret Town Trestle in Placer County, California, around 1869

Artifacts Used by Chinese Transcontinental Railroad Workers Found in Utah

Researchers discovered the remains of a mid-19th century house, a centuries-old Chinese coin and other traces of the short-lived town of Terrace

The 'Ubeidiya site today is an expanse of grasses. Concealed from this view are slabs of fossilized pebbly clay, a source of ancient finds that have helped scholars learn about the journeys of Homo erectus.

What Drove Homo Erectus Out of Africa?

Excavations at a site in northern Israel are at the heart of a debate about the species' migrations

The researchers used carbon dating of seeds above and below the footprints to determine their age.

Prehistoric Footprints Push Back Timeline of Humans' Arrival in North America

Found in New Mexico, the fossilized impressions date to between 21,000 and 23,000 years ago, a new study suggests

A cluster of western monarch butterflies clings to a branch as it overwinters in California.

The Best Place to Watch Monarch Butterflies Migrate Might Be This Little California Beach Town

Thousands of western monarchs migrate to Pismo Beach each fall to escape winter cold, but climate change threatens the species' survival

Medicine Lodge Archaeological Site is home to hundreds of petroglyphs and pictrographs.

Centuries-Old Pottery Could Reveal When the Crow Arrived in Wyoming

Radiocarbon dating of ceramics found at Medicine Lodge Archaeological Site may offer new insights on the region's Indigenous history

NASA's Ingenuity helicopter arrived on Mars on February 18, 2021.

Why Did NASA Test a Helicopter on Mars?

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Great white sharks travel hundreds of miles to specific locations in the world’s oceans.

New Evidence Suggests Sharks Use Earth's Magnetic Field to Navigate

Bonnethead sharks swam in the direction of their home waters when placed in a tank charged with an electromagnetic field

A prairie warbler greets the spring in New Jersey.

How Scientists Are Deciphering the Many Mysteries of Migratory Birds

Each spring across the forests, lakes and suburbs of North America, millions of birds take a long journey north in search of summer nesting territory

Butterflies in Mexico’s monarch reserve. Their wings can function as solar panels, converting sunlight into energy for flight.

An Epic Monarch Migration Faces New Threats

The butterflies’ path, which stretches thousands of miles, is endangered by an array of challenges, including changes in climate and pesticides

The migration advances an average of 25 to 30 miles a day. A cyclist can cover similar distances.

What I Learned Biking the 10,000-Mile Migration Route of Monarch Butterflies

I set off to be the first person to cycle alongside the butterflies to raise awareness of their alarming decline

The lights of the Philadelphia skyline at night.

Philadelphia Skyscrapers Turn Lights Off to Save Migrating Birds

A new program aimed at reducing deadly collisions with buildings for migrating birds is set to begin on April 1

Sauropodomorphs are a group of massive, long-necked dinosaurs that are the largest dinosaurs and land animals that ever lived, and later evolved into Brachiosaurus and Apatosaurus.

Climate Change May Have Aided Dinosaurs' Journey From South America to Greenland

A shift in CO2 levels millions of years ago made conditions on Earth milder, allowing herbivores, like sauropodomorphs, to migrate to Greenland

Three adult gray whales photographed via drone in 2017, 2018 and 2019 in Laguna San Ignacio off the coast of Mexico. The three shots show increasingly skinny whales, a bad sign for an animal that needs to make a 10,000-mile return trip to reach its feeding grounds.

Nearly 400 Gray Whales Have Died Off the West Coast Since 2019

Scientists say the die-off, which is entering its third year, is likely due to a scarcity of food in the animals’ cold water feeding grounds

Longer days signal to birds when they should breed and lay their new clutch of eggs, and they match up their timing so that their chicks are born when the springtime's bounty is at its peak.

Light Pollution Is Causing Birds to Nest Earlier, Mitigating Some Effects of Climate Change

But two wrongs don't make a right, as both problems are altering the birds' biology

The new archive tracks how 96 different species have moved across the Arctic over the last 28 years.

Arctic Wildlife Are Shifting Their Behaviors Due to Climate Change

The new, collaborative data archive tracks nearly 100 species over the last three decades

A genetic analysis revealed that by the end of the last ice age—around 11,000 years ago—there were a least five distinct lineages that gave rise to dogs in New Guinea, the Americas, northern Europe, the Near East and Siberia.

How Dogs and Humans Evolved and Migrated in Tandem

Our relationship with pups spans millennia, and new DNA analysis shows just how much people influenced canine evolution

The area is home to about 500 residential eagles that attract visitors year-round, most especially in the fall when migrating birds up the count to historic highs of 3,000.

Behold the Largest Congregation of Bald Eagles in the United States

Every November, hundreds if not thousands of the birds of prey gather in Haines, Alaska, to feast on salmon

Bar-tailed godwits spend their summers in the Arctic, where they breed and build up their energy reserves before flying south for the winter.

Bird Flies 7,500 Miles, a New Record for Longest Nonstop Bird Migration

After summering in the Arctic, a bar-tailed godwit soared across the Pacific Ocean like a "jet fighter" to winter in New Zealand

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