For the first time, a stem cell model has produced a structure resembling an early human embryo with a yolk-sac-like structure, from a single starting stem cell population and without direct genetic ...

Sox9, a master regulator of cartilage formation, switches its target genes dynamically during embryonic limb development ...

In about one out of every 1,000 pregnancies, the neural tube, a key nervous system structure, fails to close properly.

For the first time, a stem cell model has produced a structure resembling an early human embryo with a yolk-sac-like ...

Intrauterine growth restriction contributes to high rates of “runt” piglets, which have a lower survival rate after birth.

Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the ...

A breakthrough in genetics reveals how spines first appeared, changing what we know about the evolution of complex species.

Some amputated limbs heal into scars. Others begin building themselves back. That split has long sat at the center of ...

It has been a persistent mystery. Why is it that some amphibians, such as salamanders and frog tadpoles, can regenerate lost ...

Homeland Security Secretary Markwayne Mullin is reviewing a plan to transform warehouses across the U.S. into detention facilities for tens of thousands of immigrants.

A new study demonstrated that introducing neurons into Xenopus-derived biobots led to the self-organization of active neural ...

FILE - Harvard University researcher Kseniia Petrova, 30, departs the John Joseph Moakley United States Courthouse after being released on bail from federal custody ...