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.

cell and molecular biology, ecology, immunology, evolution
Image of the Day: Organ Crosstalk
Image of the Day: Organ Crosstalk
Carolyn Wilke | Mar 19, 2019
Zooming in on the ovarioles of Drosophila could reveal links between muscles, nutrition, and the development of eggs.
Image of the Day: Sperm Donors
Image of the Day: Sperm Donors
Carolyn Wilke | Mar 18, 2019
Asexual female nematodes use their male offsprings’ sperm to fertilize eggs, but cast away their genes.
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.
Gene-Edited Soybean Oil Makes Restaurant Debut
Gene-Edited Soybean Oil Makes Restaurant Debut
Carolyn Wilke | Mar 13, 2019
A Minnesota-based company reports the sale of a soybean oil engineered to have greater stability and no trans-fat.
Image of the Day: Squid Skin
Image of the Day: Squid Skin
Carolyn Wilke | Mar 13, 2019
The cephalopods use several strategies to manipulate light and produce their colorful patterns.
Image of the Day: Double Header
Image of the Day: Double Header
Carolyn Wilke | Mar 8, 2019
Scientists have manipulated the electrical signals that help guide flatworms in regenerating their body parts to encourage a flatworm to grow two heads.
Image of the Day: An Infectious Glow
Image of the Day: An Infectious Glow
Carolyn Wilke | Mar 7, 2019
In CRISPRed fruit flies that lack certain antimicrobial peptides, bacterial infections flourish, as revealed by fluorescent markers.
CAR T Cells Treat Lupus in Mice
CAR T Cells Treat Lupus in Mice
Abby Olena | Mar 6, 2019
T cells modified to target disease-contributing B cells improved survival in two mouse models of the autoimmune disease.
Does Prior Dengue Exposure Help or Hurt a Zika Infection?
Does Prior Dengue Exposure Help or Hurt a Zika Infection?
Diana Kwon | Mar 6, 2019
Animal and cell culture studies show evidence that dengue antibodies can both neutralize and enhance Zika, but human investigations have only found protective effects.