Migration

Advances in artificial intelligence and dinosaur discoveries were just some of the major science stories this year.

The Ten Most Significant Science Stories of 2023

From an asteroid sample that was delivered to Earth to a discovery about human migration from North America, these were the biggest moments of the year

In 1958, dozens of red-breasted flycatchers, like the one pictured here, flew off course and visited the United Kingdom.

One Reason Migrating Birds Get Lost Is Out of This World

Solar energy can alter the Earth’s magnetic field and likely lead the animals astray

Banksy's Migrant Child has endured damage from the elements since it appeared in 2019. 

Why Restoring a Banksy Mural in Venice Is So Controversial

Critics argue that the street artist may have intended for the work to deteriorate over time

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

None

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

The Field Museum collects bodies of birds that collide with windows. The birds are processed and cleaned by the museum’s flesh-eating beetle colony.

Almost 1,000 Birds Died in One Night From Striking a Chicago Building

Another 1,000 were killed in window collisions across the downtown area, amid calls for more bird-friendly architecture and reduced light pollution

Fossilized footprints in White Sands National Park

North America's Oldest Known Footprints Point to Earlier Human Arrival to the Continent

New dating methods have added more evidence that these fossils date to 23,000 years ago, pushing back migration to the Americas by thousands of years

Inside the recreated kitchen of the Confino family, Greek Jewish immigrants who lived at 97 Orchard Street during the early 20th century

See Inside the Newly Reopened Tenement Museum

The Manhattan museum dedicated to telling the stories of everyday immigrants offers vital lessons for today

BirdCast’s newest advances provide detailed flight forecasts of millions of birds.

Four Amazing Impacts of This A.I.-Powered Bird Migration Tracker

A reimagined tool called BirdCast is helping birders, scientists and even farmers

The Tyrolean Iceman Ötzi is one of the oldest known human glacier mummies.

Famed 5,300-Year-Old Alps Iceman Was a Balding Middle-Aged Man With Dark Skin and Eyes

Genetic analysis shows that Ötzi was descended from farmers who migrated from an area that is now part of Turkey

Belugas head to Hudson Bay in the summer in droves to eat, molt and give birth.

Watch Tens of Thousands of Beluga Whales Migrate With These Live Streams

The marine mammals are gathering in Canada's Hudson Bay and Churchill River—and their journey is a reminder of sea ice's importance

Scientists found that carvings on the bones of giant sloths were made within a few years of the animals' deaths.

Humans May Have Arrived in the Americas Earlier Than Previously Thought

Researchers say that humans coexisted with giant sloths in Brazil some 25,0000 years ago

Trub, a leftover of the brewing process, could be key to scientists’ quest to develop a cheap, effective artificial scent guide for hatchery-raised salmon.

How Far Will Salmon Swim for a Craft Beer?

Researchers in Oregon hope a surprising aroma will lure stray fish back to their home hatcheries

The white spots on the edges of a monarch butterfly's wings might give it an advantage while migrating, according to new research.

Monarch Butterflies’ Signature White Spots May Help Them Fly

These long-distance migrants could get a boost from their striking coloration, which may reduce drag by heating and cooling air unevenly

Red knots feed on horseshoe crab eggs along the shore at Mispillion Harbor, Delaware.

Red Knot Shorebird Numbers Rise in New Jersey

An independent survey counted 22,000 of the federally threatened birds, up from a historic low of 6,880 in 2021

Purple martins perch on a branch in the Brazilian Amazon.

Why Are Purple Martins Declining in the United States?

Mercury contamination in their Amazonian wintering grounds may play a role

Indigenous people brought to Spain by Hernán Cortés play the game patolli.

The Indigenous Americans Who Visited Europe

A new book reverses the narrative of the Age of Discovery, which has long evoked the ambitions of Europeans looking to the Americas rather than vice versa

About 100 miles northwest of Mexico City in the UNESCO-designated Monarch Butterfly Biosphere Reserve, up to a billion of the brilliant-winged insects spend November to March clustered on branches.

A Ring of Fire, Millions of Monarchs and Other Rare Natural Phenomena Worth Traveling For

Be in the right place at the right time to witness these sublime sights

A grave with bones that were analyzed

Ancient DNA Charts Native Americans’ Journeys to Asia Thousands of Years Ago

Analysis of ten Eurasian individuals, up to 7,500 years old, gives a new picture of movement across continents

Page 2 of 10