Add Yahoo as a preferred source to see more of our stories on Google. A human embryo model generated from reprogrammed stem cells by the lab of Magdalena Zernicka-Goetz, the Bren professor of biology ...

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

Rachel and Douglas Copher, a Milwaukee couple who grew their family through in vitro fertilization, are now hoping to donate ...

For decades, scientists knew that male embryos in many mammal species—such as cows, mice, and even humans—tend to grow faster than female ones. But no one really knew why. The new study, published in ...

The quail is a small, unassuming bird that glides rather than flies and prefers to hide under bushes than to perch on top of ...

STANFORD, Calif. (KGO) -- In the Camarillo bioengineering lab at Stanford, engineers measure impacts both big and small. And that ability can help in research as far ranging as preventing concussions ...

Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...