Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?
A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.
Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?

A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.

A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.

heart failure, evolution, developmental biology, culture
Scientists Push for a Moratorium on Human Germline Editing
Scientists Push for a Moratorium on Human Germline Editing
Ashley Yeager | Mar 13, 2019
After the reported birth of CRISPRed babies in China, experts want to take time to consider the scientific, social, ethical, and philosophical consequences of editing heritable human DNA.
Brain Surface Area Reveals Overlap in Genes, Intelligence, Evolution
Brain Surface Area Reveals Overlap in Genes, Intelligence, Evolution
Carolyn Wilke | Mar 4, 2019
An analysis of the contours of more than 600 kids’ brains points to links between cerebral surface area and heritability in regions of the brain important in cognition.  
Opinion: Individuals Are Greater Than the Sum of Their Parts
Opinion: Individuals Are Greater Than the Sum of Their Parts
Itzhak Mizrahi, Fotini Kokou | Mar 1, 2019
The study of evolution requires consideration of organisms’ microbiomes.
Drugs, Developed
Drugs, Developed
Bob Grant | Mar 1, 2019
In an era of instant communication, we must be careful how word of new and untested treatments is shared.
In Praise of Crazy Ideas
In Praise of Crazy Ideas
Safi Bahcall | Mar 1, 2019
The author of a new book explains the dangers of orthodoxy in science and beyond.
Prehistoric Microbes Inhabit an Oasis in the Northern Mexican Desert
Prehistoric Microbes Inhabit an Oasis in the Northern Mexican Desert
Diana Kwon | Mar 1, 2019
The blue lagoons of the Cuatro Ciénegas Basin provide a glimpse into the planet’s ancient past.
Primordial RNA May Have Contained Inosine
Primordial RNA May Have Contained Inosine
Catherine Offord | Mar 1, 2019
The discovery that the adenosine derivative aids self-replication adds weight to the theory that life on Earth originated from a mixture of RNA molecules.
Ten-Minute Sabbatical
Ten-Minute Sabbatical
The Scientist Staff | Mar 1, 2019
Take a break from the bench to puzzle and peruse.
Archaea CRISPR Systems Grab DNA Memories During Interspecies Mating
Archaea CRISPR Systems Grab DNA Memories During Interspecies Mating
Carolyn Wilke | Mar 1, 2019
When different archaeal species mate, their CRISPR systems interact in ways that may influence their evolution.