Migration

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

An old Viking ship under the Northern Lights in Iceland

Ancient DNA Reveals a Genetic History of the Viking Age

Nearly 300 ancient genomes shed light on how people migrated and genes flowed in Scandinavia

A cannibalized face dated to the 15th century B.C.E. The remains were found in Gough's Cave, the same site as some of the remains analyzed in the new study. 

Prehistoric DNA Reveals Two Groups Migrated to the U.K. After the Last Ice Age

The bones of two individuals found in caves helped scientists determine their ancestry

Goods from a grave site at Issendorf cemetery in Lower-Saxony, Germany. 

DNA From Skeletons Reveals Large Migration to Early Medieval England

A new study could close a long-standing debate about movement of people post-Roman rule

One reader wonders: Why did ants make it all over the Americas while anteaters didn’t?  

Why Do Anteaters Live Only in the Tropics and More Questions From Our Readers

You've got questions. We've got experts.

Bakhtiari nomads in the Zagros Mountains of Iran in June 2017

How Nomads Shaped Centuries of Civilization

A new book celebrates the achievements of wanderers, whose stories have long been overlooked

About two to three million birds of prey fly through Panama each fall, in what amounts to the world’s third-largest raptor migration.

Watch Millions of Raptors Fly Across Panama This Fall

The country’s unique shape makes it a perfect migratory pathway for the birds of prey

Migrating waterbirds over South Dakota’s Huron Wetland Management District on North America’s Central Flyway.

Scientists Are Using These High-Tech Tools to Study Bird Migration

Tracking the journeys of different species is key to protecting them from habitat loss and other threats

Researchers tracked one moth for just under 56 miles, marking the longest distance an insect has been continuously tracked.

How Migrating Death's-Head Hawkmoths Fly Along a Straight Path

No prior study had continuously monitored wild, nocturnal migrating insects

Aerial view of the usually submerged ruins of the village of Aceredo in northwestern Spain on February 15, 2022

This Summer’s Drought Is Europe's Worst in 500 Years. What Happened Last Time?

The 1540 megadrought brought mass suffering to the continent, but European society quickly bounced back

Birds that wander out of their home ranges can be an unexpected source of revenue. Stella, a Steller’s sea eagle, recently turned up in Maine and Massachusetts, drawing tourists who spent nearly US $500,000.

Birds Wandering Far From Home Can Be a Boon for Local Tourism

When an internet-famous Steller’s sea eagle turned up roughly 11,000 kilometers off course in late 2021, birders flocked to catch a glimpse

The trunk, ears and tail of this baby woolly mammoth, named Nun cho ga, are almost perfectly preserved.

Well-Preserved, 30,000-Year-Old Baby Woolly Mammoth Emerges From Yukon Permafrost

The mummified creature is helping to heal the rift between the Tr'ondëk Hwëch'in people and the miners and scientists who came to their lands

New research shows that mass migration of ancient peoples from the south were essential to bringing maize cultivation to Maya communities in Central America. Scientists previously thought knowledge of farming techniques were shared by word of mouth between neighboring communities. 

New Study Finds Migrants Brought Maize to the Maya

DNA analysis of skeletal remains in Belize helps piece together how corn cultivation came to thrive in Central America

The flamingo in Cox Bay near Port Lavaca, Texas. 

Flamingo That Escaped From a Zoo in Kansas Is Spotted Once Again in Texas 17 Years Later

The zoo hasn’t made any plans to catch the bird, saying any attempts might harm the flamingo and other wildlife

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