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.

developmental biology, evolution, microbiology
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.
Lab in South African “Township” to Sample TB from Breathed Air
Lab in South African “Township” to Sample TB from Breathed Air
Linda Nordling | Mar 8, 2019
A new facility located in a congested community with high tuberculosis rates brings basic science and cutting edge techniques into the heart of disease circulation.
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.
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.
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.
Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins
Catherine Offord | Feb 28, 2019
The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.
DNA’s Coding Power Doubled
DNA’s Coding Power Doubled
Ruth Williams | Feb 21, 2019
All life on Earth uses a genetic code based on four nucleotides. Now, scientists have created one with eight.