Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins
The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.
Doctors Report World’s Second Case of “Semi-Identical” Twins
Doctors Report World’s Second Case of “Semi-Identical” Twins

The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.

The extremely rare event, thought to be caused by two sperm cells fertilizing the same egg simultaneously, was last reported in 2007.

autoimmune disease, ecology, cell & molecular biology
HeLa Cells from Different Labs Vary in Genetics, Phenotype
HeLa Cells from Different Labs Vary in Genetics, Phenotype
Katarina Zimmer | Feb 26, 2019
This could account for some reproducibility problems in cell line research, according to the authors of a comprehensive analysis of HeLa variants.
Gene Drive–Equipped Mosquitoes Released into Lab Environment
Gene Drive–Equipped Mosquitoes Released into Lab Environment
Jef Akst | Feb 20, 2019
The large-scale experiments aim to test how the technology would fare in the wild, if deployed to knock down populations of the pests.
New Global Trade Route Could Shuttle Invasive Species
New Global Trade Route Could Shuttle Invasive Species
K.V. Venkatasubramanian | Feb 19, 2019
China’s ongoing Belt and Road Initiative passes through areas that are already at risk of swapping organisms.
Japan Approves iPS Cell Therapy Trial for Spinal Cord Injury
Japan Approves iPS Cell Therapy Trial for Spinal Cord Injury
Catherine Offord | Feb 18, 2019
The treatment will be tested in a handful of patients who suffered nerve damage in sports or traffic accidents.
Ribosomal DNA Can Predict an Animal’s Age
Ribosomal DNA Can Predict an Animal’s Age
Abby Olena | Feb 14, 2019
A clock constructed of rDNA methylation sites can estimate both chronological and biological age across species.
Human Pancreas Cells Can Be Made to Produce Insulin
Human Pancreas Cells Can Be Made to Produce Insulin
Jef Akst | Feb 14, 2019
When implanted into mice, the “pseudo-islets” helped treat the animals’ diabetes symptoms.
Image of the Day: Star Burst
Image of the Day: Star Burst
Carolyn Wilke | Feb 8, 2019
Pancreatic cells associated with cancer resemble celestial bodies as revealed by microscopy.
Immune Response to Gut Microbes Linked to Diabetes Risk
Immune Response to Gut Microbes Linked to Diabetes Risk
Abby Olena | Feb 1, 2019
Researchers find that it’s not just high-risk genes, but how children’s bodies respond to their own intestinal microbiota that relates to future diagnoses of type 1 diabetes.
Infographic: Plants Deploy Exosomes to Stop Alien Invaders
Infographic: Plants Deploy Exosomes to Stop Alien Invaders
Amanda Keener | Feb 1, 2019
A growing branch of research on how plants use exosomes to interact with their environment is opening up a new field of plant biology.