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a black wolf and a gray wolf follow a third gray wolf, whose head is tilted back to watch, as they trot through a snowy background, with light colored, barren trees in the background.
Black and Gray Wolf Pairings Stem Disease, Stabilize Population: Study
The black fur allele has fitness costs but also confers higher immunity against canine distemper virus, making mix-and-match mating key to population survival.
Black and Gray Wolf Pairings Stem Disease, Stabilize Population: Study
Black and Gray Wolf Pairings Stem Disease, Stabilize Population: Study

The black fur allele has fitness costs but also confers higher immunity against canine distemper virus, making mix-and-match mating key to population survival.

The black fur allele has fitness costs but also confers higher immunity against canine distemper virus, making mix-and-match mating key to population survival.

genetic variation
genome sequence text on screen 
Q&A: Whole Genomes of 150,000 Britons Reveal Novel Genetic Variants
Sophie Fessl, PhD | Aug 5, 2022 | 5 min read
Height and onset of menarche are among traits linked to previously unidentified genetic variants in noncoding regions of the human genome.
Dogs of various breeds running in the field.
They’re All (Potentially) Good Dogs
Natalia Mesa, PhD | Apr 29, 2022 | 2 min read
Research finds that a dog’s behavior has little to do with its genes.
Drosophila melanogaster on cactus leaf
Fruit Flies Evolve in Time with the Seasons: Study
Natalia Mesa, PhD | Mar 17, 2022 | 5 min read
Researchers find that evolution can operate on extraordinarily fast timescales.
collage of images related to favorite stories, including black and white photo of flowers, illustration of two rats, human body with floating coronaviruses
The Scientist Editors’ Favorite Stories of 2021
The Scientist Staff | Dec 28, 2021 | 5 min read
A look back at some of the articles we most enjoyed reading, writing, and editing this year
Identical Twins Accumulate Genetic Differences in the Womb
Catherine Offord | Jan 7, 2021 | 4 min read
DNA replication errors during cell division cause monozygotic twins to diverge from each other even during the earliest stages of development, a new study finds.
Study Tracks Geographical Gene Flow and Ancestry in the US
Shawna Williams | Sep 1, 2020 | 4 min read
The analysis adds new details to the picture of migration and mixing in a diverse country.
Two Genetic Regions Linked with Severe COVID-19
Abby Olena, PhD | Jun 8, 2020 | 4 min read
In a genome-wide association study, variants in both the ABO blood group locus and a cluster of genes on human chromosome 3 are more common among COVID-19 patients with respiratory failure than in the general population.
A New Way to Establish Cause and Effect in Epidemiology?
Rachael Moeller Gorman | Jan 1, 2020 | 7 min read
A technique called Mendelian randomization is overturning the conclusions of observational studies in public health. But researchers question whether the method can overcome its fundamental limitations.
Even Healthy Tissues Carry Clusters of Cells with Mutations: Study
Ashley Yeager | Jun 7, 2019 | 2 min read
Most of the genetic alterations are harmless, but some may contribute to cancer.
Lack of Diversity in Genetic Datasets is Risky for Treating Disease
Ashley Yeager | Mar 21, 2019 | 6 min read
Certain populations have been historically underrepresented in genome sequencing studies, but the NIH, private clinics, and 23andMe and other companies are trying to fix that.
Hawaiian Spiders on Different Islands Evolved Same Disguise in Parallel
Catherine Offord | Mar 8, 2018 | 2 min read
In an unusual evolutionary twist, local stick spiders have come up with an almost identical repertoire of color morphs in multiple locations.
Researchers Identify Gene Variants Linked to Synesthesia
Catherine Offord | Mar 5, 2018 | 2 min read
A whole-genome analysis of people who experience color when they listen to sounds points to a handful of genes involved in neural development.
The Rising Research Profile of 23andMe
Catherine Offord | Nov 30, 2017 | 7 min read
An exploration of the genetics of earlobe attachment is just the latest collaborative research project to come out of the personal genetic testing company.
Genetic Risk Factors for Breast Cancer Identified
Ashley P. Taylor | Oct 23, 2017 | 4 min read
Researchers identify 72 novel genetic variants associated with breast cancer risk.
Massive Transcription Catalog Outlines the Influence of Human Genetic Variation
Ruth Williams | Oct 11, 2017 | 3 min read
Combined transcription and genome data from multiple tissues in hundreds of human donors reveal links between genotype and gene expression across the body.
The Pangenome: Are Single Reference Genomes Dead?
Catherine Offord | Dec 1, 2016 | 10+ min read
Researchers are abandoning the concept of a list of genes sequenced from a single individual, instead aiming for a way to describe all the genetic variation within a species.
Infographic: Partitioning the Genome
Catherine Offord | Nov 30, 2016 | 1 min read
To make sense of the genetic variation within species, researchers are turning to the concept of the pangenome.
The Genetic Components of Rare Diseases
Kelly Rae Chi | Jul 1, 2016 | 9 min read
Techniques for determining which genes or genetic variants are truly detrimental
Genetic Connections Among Human Traits
Anna Azvolinsky | May 16, 2016 | 3 min read
A study identifies genetic variants that are linked to multiple phenotypes.
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