David Poznik In the largest study of genetic variation within the human Y chromosome, an international team of scientists has traced back branches of the male line almost 200,000 years,...

A few weeks ago Vox did a piece about a 23andMe customer, who at 50 found his biological sister and his mother using the service. He’d been adopted. His sister...

by Emily Chang, Joanna Mountain and Mike Macpherson Click on the image above for a larger version of this chart, which shows that some ancestry combinations are more common than...

Male 23andMe customers can learn more about their paternal line (the ancestry inferred from their Y-chromosome) here: Paternal Ancestry Not yet a customer? Visit our store or learn more. For...

Today is Cinco de Mayo. This day commemorates the Mexican army’s 1862 victory over France in the Battle of Puebla (not Mexican independence day as is commonly believed), but is...

Editor’s note: This post has been edited to reflect changes to the 23andMe ancestry product. Nearly 37 million Americans claim to have Irish heritage according to a national survey conducted...

Meet Sheridan*. She’s a 27 year old female who signed up for 23andMe during one of our sales. Adopted at eight months, she has no information about her biological roots...

The 23andMe Personal Genome Serviceâ„¢ offers information about customers’ maternal and paternal ancestry by examining their mitochondrial DNA (which we all inherit from our mothers) and the Y chromosome (which...