Photo of a North American caribou (Rangifer tarandus) in Jasper National Park in Canada
Dozens of Genes Tied to Caribou’s Seasonal Migration
Researchers tracked the movements of endangered caribou and sequenced a portion of their genomes to determine which genes may influence migratory behavior.
ABOVE: Mark Bradley, Parks Canada
Dozens of Genes Tied to Caribou’s Seasonal Migration
Dozens of Genes Tied to Caribou’s Seasonal Migration

Researchers tracked the movements of endangered caribou and sequenced a portion of their genomes to determine which genes may influence migratory behavior.

Researchers tracked the movements of endangered caribou and sequenced a portion of their genomes to determine which genes may influence migratory behavior.

ABOVE: Mark Bradley, Parks Canada

migration

indoor chicken farm
Avian Flu Case Numbers Soar in Europe
Chloe Tenn | Jan 7, 2022
The Scientist spoke with the UK’s chief veterinary officer, Christine Middlemiss, about this winter’s high bird flu prevalence, the effects of the disease, and efforts to combat it.
mummy
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Chloe Tenn | Dec 29, 2021
Scientists find human DNA preserved in lice cement from the heads of South American mummies.
two quails
Chromosomal Rearrangement Linked to Less Mobile Quail
Chloe Tenn | Dec 7, 2021
The Scientist interviews evolutionary biologist Carles Vilà about how a large genomic inversion detected in common quail affects the birds’ physical characteristics and migratory behaviors.
Cranes in flight
Why Migratory Birds Often Have Paler Wings Than Other Birds
Amanda Heidt | Dec 7, 2021
A new study suggests that lighter colors may help these species stay cool on their long journeys, when birds are pushing themselves to their physiological limits.
Dongsha Atoll in the South China Sea
Ubiquitous Little Earthworms Might Have Got Around on Driftwood
Annie Melchor | Nov 1, 2021
Researchers also tried placing the worms on pigeons as part of a study aiming to uncover how the tiny invertebrates ended up all around the world.
A European robin on a tree branch
New Study Fuels Debate About Source of Birds’ Magnetic Sense
Catherine Offord | Jun 23, 2021
A detailed analysis of cryptochrome 4 shows that the protein is highly sensitive to magnetic fields in vitro, but some researchers dispute the authors’ assertion that the findings could help explain avian magnetoreception.
Ten Minute Sabbatical
Emily Cox and Henry Rathvon | Jun 1, 2021
Take a break from the bench to puzzle and peruse.
Study Tracks Geographical Gene Flow and Ancestry in the US
Shawna Williams | Sep 1, 2020
The analysis adds new details to the picture of migration and mixing in a diverse country.
Another Ancient Primate Lineage Sailed to South America
Lisa Winter | Apr 10, 2020
A new fossil discovery indicates a second primate group also traversed the Atlantic millions of years ago on a raft of vegetation.
ixchel chan hol cenote cave skulls skeletons human remains ancient north american settlers mexico speleology
Skulls from the Yucatán Peninsula a Clue to Early American Settlers
Alejandra Manjarrez | Apr 7, 2020
The crania of individuals who lived in the Yucatán Peninsula during the late Pleistocene show a high degree of anatomical diversity among them, and their skull shapes differ from that of other North American populations of the time.
Monarchs Covered 53 Percent Less Area in Mexico this Winter
Ashley Yeager | Mar 16, 2020
The decline in total occupied forest may not equate to an overall loss in butterfly numbers, but scientists are still concerned that their populations are suffering.
Ancient Wheat Genome Reveals Clues to the Agricultural Past
Jef Akst | Mar 1, 2020
A museum sample of a 3,000-year-old Egyptian crop plant yields genomic information that helps researchers track the plant’s domestication and migration.
Image of the Day: Flock in the Night
Amy Schleunes | Feb 19, 2020
The National Weather Service’s radar in Key West captures a spectacular moment in bird migration.
Mexico’s Monarch Butterfly Defender Found Dead
Ashley Yeager | Jan 30, 2020
Details of Homero Gómez González’s death are not yet known.
migration genetics uk wealth inequality education
Opinion: The Nature of Social Inequalities in Great Britain
Abdel Abdellaoui, Judy Luigjes | Oct 21, 2019
Regional differences in wealth in the UK are tied to genetic variants related to education—and migration is only widening the gap.
Image of the Day: Eel Compass
Emily Makowski | Oct 14, 2019
Glass eels form a magnetic memory of their estuaries’ currents in order to migrate.
Ancient DNA Traces History of South Asians
Catherine Offord | Sep 6, 2019
Modern-day populations in India descend from a mixture of peoples living thousands of years ago in South and Central Asia, including the Bronze-Age Indus Valley Civilization, two studies reveal.
bar-headed geese fly over the Himalayas
Bar-Headed Geese Slow Their Metabolism to Soar over Everest
Nicoletta Lanese | Sep 4, 2019
The birds also decrease their heart rate and chill their blood to maintain flight in hypoxic conditions.
smalleye stingray marine ocean biology animal wildlife largest photo id identification migration long distance
Image of the Day: Photo ID
Chia-Yi Hou | Jun 27, 2019
Marine biologists identify smalleye stingrays using the white spots on their backs.