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.

development
Mutations in One Gene Linked to Two Separate Birth Defects
Mutations in One Gene Linked to Two Separate Birth Defects
Emma Yasinski | Feb 1, 2019
The same network of transcription factors may be responsible for both cleft palate and neural tube defects, according to a new study connecting mouse and human data.
Presence of Bacterial Pathogen Blocks <em>Arabidopsis</em> Germination
Presence of Bacterial Pathogen Blocks Arabidopsis Germination
Jef Akst | Feb 1, 2019
A compound produced by Pseudomonas aeruginosa activates signaling pathways that prevent seeds from growing in unfavorable environments.
Leader of Evo-Devo Field, Rudy Raff, Dies
Leader of Evo-Devo Field, Rudy Raff, Dies
Jef Akst | Jan 9, 2019
The Indiana University professor was known for his research on the evolution of organismal development.
Serotonin Neurons Implicated in SIDS
Serotonin Neurons Implicated in SIDS
Ashley Yeager | Jan 1, 2019
Inhibiting nerve cells that produce the neurotransmitter made it harder for baby mice to recover from bouts of slowed breathing.
Prenatal Exposure to Cannabis Affects the Developing Brain
Prenatal Exposure to Cannabis Affects the Developing Brain
Andrew Scheyer | Jan 1, 2019
Children born to moms who smoked or ingested marijuana during pregnancy suffer higher rates of depression, hyperactivity, and inattention.
Image of the Day: See Through
Image of the Day: See Through
Catherine Offord | Nov 6, 2018
A zebrafish model of the birth defect craniosynostosis provides insights into how the condition develops.
Fetal Marijuana Exposure Stunts Rat Cognitive Performance
Fetal Marijuana Exposure Stunts Rat Cognitive Performance
Jef Akst | Nov 5, 2018
Offspring of rats exposed to vaporized cannabis had difficulty switching strategies to get a sugar reward, according to a study presented at the Society for Neuroscience conference.

Dialogue Improves Children&rsquo;s Learning Abilities
Dialogue Improves Children’s Learning Abilities
Sukanya Charuchandra | Nov 1, 2018
Regardless of parental income and education, children who engage in more two-way conversation with their parents learn better.

Image of The Day: Open-and-Shut Case
Image of The Day: Open-and-Shut Case
Catherine Offord | Oct 4, 2018
A special hinge joint allows some turtle species to close and open their shells.